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SUBMISSIONS for Steel Chariot of The Prairie: The Lone Free State's First Battle Tank (2247)


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detailed below is the expected format of the final submission.
The date is set as Saturday the 24th of July at 23:59 CST.

Again, incomplete designs may be submitted as they are and will be judged as seen fit.

PLEASE REMEMBER ALL ENTRIES MUST BE SUBMITTED IN USC ONLY

 

 

FINAL SUBMISSION:
Vehicle Designation and name

 

[insert 3-projection (front, top, side) and isometric render of vehicle here]
 

Table of basic statistics:

Parameter

Value

Mass, combat (armor)

 

Length, combat (transport)

 

Width, combat (transport)

 

Height, combat (transport)

 

Ground Pressure, zero penetration

 

Estimated Speed

 

Estimated range

 

Crew, number (roles)

 

Main armament, caliber (ammo count ready/stowed)

 

Secondary armament, caliber (ammo count ready/stowed)

 

 

Vehicle designer’s notes: explain the thought process behind the design of the vehicle, ideas, and the development process from the designer’s point of view.

Vehicle feature list:
Mobility:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Engine- type, displacement, rated power, cooling, neat features.

3.     Transmission - type, arrangement, neat features.

4.     Fuel - Type, volume available, stowage location, estimated range, neat features.

5.     Other neat features in the engine bay.

6.     Suspension - Type, Travel, ground clearance, neat features.

Survivability:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Link to Appendix 2 - armor array details.

3.     Non-specified survivability features and other neat tricks - low profile, gun depression, instant smoke, cunning internal arrangement, and the like.

Firepower:

A.    Weapons:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Main Weapon-

a.      Type

b.      Caliber

c.      ammunition types and performance (short)

d.     Ammo stowage arrangement- numbers ready and total, features.

e.      FCS - relevant systems, relevant sights for operating the weapon and so on.

f.      Neat features.

3.     Secondary weapon - Similar format to primary. Tertiary and further weapons- likewise.

4.     Link to Appendix 3 - Weapon system magic. This is where you explain how all the special tricks related to the armament that aren’t obviously available using 1960s tech work, and expand to your heart’s content on estimated performance and how these estimates were reached.

B.    Optics:

1.     Primary gunsight - type, associated trickery.

2.     Likewise for any and all other optics systems installed, in no particular order.

C.    FCS:

1.     List of component systems, their purpose and the basic system architecture.

2.     Link to Appendix 3 - weapon system magic, if you have long explanations about the workings of the system.

Fightability:

1.     List vehicle features which improve its fightability and useability.

Additonal Features:

Feel free to list more features as you see fit, in more categories.

Free expression zone: Let out a big yeehaw to impress the world with your design swagger! Kindly spoiler this section if it’s very long.

 

 Example for filling in Appendix 1
 Example for filling in Appendix 2

 Example for filling in Appendix 3

GOOD LUCK!

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  • Sturgeon changed the title to SUBMISSIONS for Steel Chariot of The Prairie: The Lone Free State's First Battle Tank (2247)
  • Sturgeon pinned this topic

FINAL SUBMISSION:
XG-48E3 Comanche Battle-cruiser

 

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lPVWjQK.png

 

 

 

 

Table of basic statistics:

Parameter

Value

Mass, combat (armor)

124,450 lbs (59,950 lbs armor)

Length, combat (transport)

31.7 ft (25.6 ft)

Width, combat (transport)

12.1 ft (12.0 ft)

Height, combat (transport)

8.8 ft (8.3 ft)

Ground Pressure, zero penetration

1,795 psf

Estimated Speed

50 mph

Estimated range

500 mi

Crew, number (roles)

4 (Commander, Gunner, Loader, Driver)

Main armament, caliber (ammo count ready/stowed)

40 rds 5in/24 (33 in turret bustle rack, 7 in ready rack)

Secondary armament, caliber (ammo count ready/stowed)

1,200 rds .50 caliber, 10,000 rds .30 caliber, 3,000 rds .40 cal ammunition


Vehicle designer's notes:

The XG-48E3 Comanche is a Battle-cruiser-class heavy tracked truck ("tank") with powerful armament, resilient armor, and a high degree of mobility and range. Comanche was designed around a "fightability philosophy" in which tanks are seen as an extension of the fighting man and must permit as much as possible the operators to conduct their mission without interference. Comanche sports a powerful 5in-24 XG-47E5 cannon firing armor-piercing flechette (APF), high explosive anti-truck (HEAT), and high explosive (HE) rounds. Comanche's armor is resistant to next-generation flechette rounds likely under development by near-peer adversary states like California and Cascadia. Comanche is provided with a generous 1,200 horsepower motor which gives it a power to weight ratio of 19.4 hp/t, well in excess of requirements. Comanche is built to be upgraded, and can be augmented with a variety of improved armor, gun, engine, and fire control packages as needed.

 

Vehicle feature list:
Mobility:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Engine- Carrolton AER V-12 diesel, 2,850 cu in, 1,200 hp, liquid cooled. (Comparable to MB MTU 873)

3.     Transmission - Hydromechanical power shift, reversing and steering fully and semiautomatic transmission with four forward and four reverse gears, mounted directly to the engine via integral torque converter. (Comparable to HSWL 354)

4.     Fuel - Diesel, 482 gallons in two tanks alongside driver in front, 145 gallons in two tanks below engine in rear; 683 miles range.

5.     Sand scrubbers, filters, cleaners, blowers, etc. Powerpack can be removed from rear with crane.

6.     Suspension - Independent externally dual-coil sprung single-wheel bogies, 7 per side, 14 inches wheel travel from neutral, 8 inches extension (22 inches total travel), 18.2 inches ground clearance.

Survivability:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Link to Appendix 2 - armor array details.

3.     Protection for Comanche is rated for 13 inches (3BM6+) throughout the +20/-20 degree frontal arc with very minimal weakspots (slits, etc) only. At any place on the tank 90 degrees to the side, it will repel the Mormon 6" HEAT weapon. Coincidentally, as a byproduct of a weight-saving and turret-balancing measure, the turret will also repel the 6" HEAT weapon from the rear. Roof is rated for plunging fire. Bottom armor is rated at 1.25" RHAe vs mines and blast. As qualified tankers are in short supply in the Lone Free State, great consideration was given to crew safety, and the ability for crew to swiftly evacuate a damaged tank if necessary. Ammunition is stored in a separate compartment in the turret, and if hit, two large blowoff panels will vent the pressure from that compartment before that pressure can damage the firewall to the crew compartment. Two large hatches are provided for the commander, gunner, and loader (the commander and gunner share a hatch), both of which are fully spring-assisted and easy to open. The driver is provided with a generous hatch which is heavily armored, and is also considerably spring assisted. It tilts, and then rotates away for easy egress. The driver can egress the vehicle with the turret in any position. The driver is also protected by two large tanks of diesel fuel with a capacity of 241 gallons each. These tanks cover the entirety of the driver to each side, giving him considerable additional protection.

5Bkf8Lg.png

Image of the XG-48E3 Comanche with the outer armor panels made transparent, showing the sophisticated NERA arrays.

Firepower:

A.    Weapons:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Main Weapon-

a.      XG-47E5 autofrettaged smoothbore load-assisted cannon with horizontally-sliding breech

b.     5in/24 L/45

c.      XG-147J 15:1 L:D Armor Piercing Flechette, 530mm+ RHA penetration at 2,000 yd, XG-147H High Explosive Anti-Truck, 

d.     40 rds (33 in turret bustle rack, 7 in ready rack)

e.      FCS - relevant systems, relevant sights for operating the weapon and so on.

f.      Neat features.

3.     Coaxial armament consists of 1x .30 caliber G-17A5T machine gun and 1x .50 caliber G-19A2T machine gun, which are slaved to the main gun. Independent armament consists of 1 additional G-17A5 and 1 additional G-19A2 machine gun, and 2 dual close-in .40 caliber G-346E1 machine guns. Ammunition stowage is 1,200 rounds of .50 caliber ammunition, 10,000 rounds of .30 caliber ammunition, and 6,000 rounds of .40 caliber ammunition.

4.     Link to Appendix 3

B.    Optics:

1.     The gunner is provided with a fully stabilized 2.5-21x disturbed reticle main gunsight equipped with a laser range-finder and engageable night vision system. A simple lens with a stadia reticle is provided, which can be engaged if other systems fail. The reticle on the primary optic automatically adjusts for the selected ammunition type, and for expected wind drift and drop at range. No further sight adjustment is required once the gunner has lased the target, he simply puts the dot on the target and fires.

2.     Due to the advanced nature of the laser range-finding system, a backup optical range-finder system is provided mounted to the roof of the XG-47E3's turret. This system triangulates the distance from the target in a manner similar to human depth perception, but many times more precise. It is also fully stabilized.

dzBvUlm.png

C.    FCS:

1.     The commander is provided with a 360-degree vision cupola with eight all around periscopes which allow him to detect targets at any angle from the vehicle. These periscopes are also night-vision compatible. He is also provided with his Commander's Independent Gun Sight (CIGS) which is a 360-degree rotatable gun-sight that allows him to lase and engage targets at any distance. He is provided with the capability to automatically slave the rest of the turret to the target lased with the CIGSs, which gives the Comanche the ability to rapidly engage targets even in different locations requiring considerable rotation of the turret.

2.     Link to Appendix 3

Fightability:

1.     According to the "fightability philosophy", Comanche's fighting space was developed first, before any armor arrays were laid out or any turret weldment drawings created. Instead, the Ordnance Authority's 5in-24 gun, ammunition, ammo rack, and all the internal systems, controls, and all other things in the turret were mocked up out of cardboard, toilet paper tubes, and paper mache, and placed around a working test crew of G-12 drivers from Albuquerque. Special care was taken to listen to this crew and to incorporate this feedback into the layout and design of the tank. For instance, although Comanche is designed to operate normally with a loader, the loader's job is so reduced (at their request!) that it is entirely possible for the tank commander to perform all loading functions with minimal distraction and reduction in rate of fire. This is possible because all ammunition selection and ramming functions are automated, and because all of the loader's controls are placed within easy reach of both him and the commander. More details on this arrangement are given in Appendix 3. This arrangement was used to perform fightability experiments and once these were complete and conclusions about control and equipment placement were drawn, a cardboard shell was constructed around the compartment and fightability validation tests carried out. This resulted in an internal "shell" onto which outer armor arrays were built up.

 

Additional Features:

Automatic fire suppression system, individual wet ammunition storage, a water cooler, ramen boiler, it slices, it dices, it pulverizes! Other buzzwords!

 

Free expression zone: 
 

Spoiler

HEAD DESIGNER'S LOG, SEGUIN STEEL AND INDUSTRIAL: 

 

5/18/2247

Mastodon is bullshit. What a piece of crap. I put so much work into it, and now the engineers are telling me it's going to have to weigh 80 tons. 80 TONS!!! It was going to be so beautiful. My magnum opus, it was- Hold on, someone's coming.

5/22/2247

The past few days here have been... Interesting. Apparently, the old head designer was "reassigned" to a maintenance outpost in Amarillo, for... "Ridiculous and porschean sabotage of Texas national security". I don't even know what that word means. Anyway, he kept picking fights with the overseer here so it's not really a surprise, but that means yours truly is "head designer" now and hopefully not the next "head" to roll...


5/23/2247

They've instructed me to throw out everything Juan Taylor had made for his super-heavy truck "Mastodon", except the basic components like roadwheels, periscopes, etc. Apparently they were very unhappy with the idea of doing multiple-void castings with cast-in composite armor arrays. I wonder why. My prime directives are to produce a "tank" (that's what they're calling these caterpillar trucks, I guess) that's substantially lighter than Mastodon was supposed to be (Taylor gave a weight of 66 tons estimated, but the automotive department insisted it would actually have to be 80, clearly there was trouble in paradise.), and much, much cheaper. This has all-but restricted me to the use of weldments of rolled homogeneous armor, but that's fine, we can make plenty of that for prototypes. I've been given a target weight of 62 tons, but nobody really knows how heavy this thing will be in the end, so I'll just have to do my best to save weight where I can. First, I have to hit this stack of dusty old books I found in the corner of Taylor's office...

6/2/2247

Taylor's prewar print-out of Technology of Tanks is rapidly disintegrating. I've asked the city library to transcribe it on their typewriters, so I don't have access to it now. But what I've read so far is very helpful. Apparently, "tank" is a prewar word, that's good to know, and also apparently they made quite a lot of these things. It's hard to imagine ten thousand tracked trucks with four inch guns rolling around, but it must have been possible. Taylor's copy of Abrams is bound and in substantially better shape; it looks like he hardly touched it. It looks like the first "Abrams" tanks manufactured were under the weight limit command is looking for, and had protection versus "115mm" guns whatever that means. (margin note: apparently a "millimeter" is about a 25th of an inch, what a strange unit. But that's 4.6 inches, or about the size of the test guns we're being asked to protect against.) I also received a packet today from Austin, will have to open it later.

6/4/2247

HOLY SHIT this is gold. These are figures on something called "non explosive reactive armor arrays", and apparently they're ridiculously good armor. There's a bit more math than I'm used to but based on these calculations we should be able to protect against guns the Ordnance Authority hasn't even developed yet...

 

In loving memory of former Head Designer Juan Taylor:


L9I3Vtq.png


He's not dead, he's just really unhappy.

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Main Battle Tank, 2247, project names "Derebus" and "Derebus-M"

 

 

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xRy3O9X.jpgManufacturer: Manufactuer: Paramount-Allen-Fullerton (Para-allful) Conglomerated

 

Table of basic statistics:

 

Note: all statistics provided are for Derebus unless otherwise noted.

 

Parameter

Value

Mass, combat

Armour mass: (1-2" (25-50mm) RHA base plus ERA, composites, side skirts and engine bay liner): 20.6t (18.5mt)

 

43.1t (39.1mt) modelled, 43.4t (39.4mt) calculated

Length, combat (transport)

246" (6.25m) hull, 379" (9.63m) total 

Width, combat (transport)

150" (3.8m) with skirt

Height, combat (transport)

95" (2.41m) to top of commander's hatch, 109" (2.77m) total

Ground Pressure, zero penetration

Ground pressure (calculated MMP): 29.4 PSI (203 KPa). 

 

Nominal ground pressure (based on calculated weight): 10.3 PSI (70.77 KPa)

Estimated Speed

37 mph (60km/h)

Estimated range

490 mi at 30 mph

Crew, number (roles)

4 (commander, gunner, loader, driver)

Main armament, caliber (ammo count ready/stowed)

5-inch 55 calibre (127mm L/55) high/low pressure gun, (19 charges, 9 active projectiles, 10 inert projectiles in turret/ 16 charges, 8 active projectiles, 8 inert projectiles in hull)

Secondary armament, caliber (ammo count ready/stowed)

3 x .30 cal MG (600 rnd belted each ready/ 1200 rnd belted each stowed)

 

Vehicle designer’s notes:

 

The Derebus family of vehicles (provisionally named Derebus and Derebus-M) are intended to fulfil a procurement strategy emphasizing mobility (tactical, operational and strategic), reliability and superb value for money, achieved using a lightweight vehicle design, proven automotive components and a high/low capability mix. Derebus sports a state-of-the-art fire control system allied to a powerful 5" gun, while Derebus-M provides supporting firepower and a larger ammunition load thanks to it's 4" gun. Both vehicles provide superb protection across their frontal arcs, with the Derebus making use of cutting-edge composites to save weight. Both Derebus and Derebus M are immediately available to fulfil all of your defense needs.

 

Vehicle feature list:

DuxRMpb.jpg

Mobility:

 

1.     Link to Appendix 1

2.     Engine- V-12 Diesel (Kharkiv V-2-55 derivative), 2441 ci (40l) displacement, 600HP (448kW), liquid-cooled. 

 

Note: alternate engine and transmission arrangements are provided for in Appendix 3

 

3.     Transmission - hydraulic torque converter feeding into Merritt-Brown-style double differential system, 7 forward/1 reverse gears.

4.     Fuel - diesel, ~2400lb total (639lb/290kg in tanks flanking the driver, 1764lb/800kg in rear sponson tanks, estimated range of 490mi at 30mph.

5.     Engine, transmission and cooling are arranged in removable aluminium tub housed in engine bay. The tub is removable by sliding out the rear of the bay.

6.     Suspension - torsion bar, variable travel (presently 11.8" (30cm)), 20" (0.5m) ground clearance, geared torsion bar suspension, each axle pair in detachable units shrouded by aluminium housings. Wheels are 23.6" (0.6m) in diameter, with a track width of 27.6" (0.7m) and a pitch of 7.7" (0.195m).

 

Survivability:

 

1.     Link to Appendix 1

2.     Link to Appendix 2

3.     Non-specified survivability features and other neat tricks - highly sloped turret and hull front (75 degrees), charges and active ammunition (HEAT-FS and HE) arranged in sealed tubes leading to a blast chimney that outlets to blow-off panels in the turret roof, turret sides, hull roof and hull sides.

 

A.    Weapons:

 

1.     Link to Appendix 1

 

2.     Main Weapon-

 

a.      Type: smoothbore, vertically trainable +15/-10 degrees

 

b.      Caliber: 5"/127mm

 

c.      ammunition types and performance:

 

Note: the armour used for the target has the same hardness (360BRN) as the armour used in the vehicle. The target was at 0 degree obliquity for calculation purposes.

  • HEAT-FS (low-pressure setting): 46lb (20.85kg), penetration of around 21" (535mm), 3074fps (937m/s).
  • HE (low-pressure setting): 46lb (23.2kg), 201oz (5.7kg) fill, estimated blast penetration of ~55mm RHA, 2910fps (887m/s)
  • APFSDS (high-pressure setting): 15:1 LD, 550BHN monosteel body, tungsten insert, 115mm cap, ring sabot, 1800m/s, 15.7/13.8" (400/350mm) penetration at 100/2000y (lower estimate, 17.1" (435mm) at 2000y upper estimate).

d.     Ammo stowage arrangement - 19 charges, 9 active projectiles, 10 inert projectiles in turret; 16 charges, 8 active projectiles, 8 inert projectiles in hull.

 

e.      FCS:

  • Duel axis stabilized main gun
  • Semi-autoloader: the loader places the charge and warhead on trays in the bustle. these are then fed into the gun using an automatic mechanism (horizontal rammer, pivoting loading tray and rigid chain actuator to ram the warhead and charge home). The gun automatically returns to the loading position after each shot. A short spring at the end of the actuator helps to smooth out the loading impulse.

 

f.      Neat features: 

  • Gun has a high-pressure and low-pressure recoil option, selectable on the slide – this doesn’t affect the recoil mechanism, it just changes where the trip key is to unlock the breech (warning: don’t fire high-pressure ammo with the low-pressure setting selected!)
  • Gun uses a separate 6.9x27" (175x685mm) charge: 44lb/20kg mass, semi-combustible case built along the lines of the 4Zh-40 charge used with the historical 125mm 2A26 gun), matching the length of the HEAT-FS round.
  • The charge gives space to produce a more powerful round to match higher future barrel higher pressures (when using a secondary charge with the APFSDS projectile itself). 74000 PSI (510 MPa) gives a potential power of 15MJ. 94000PSI (650 MPa) gives a potential power of 19MJ.
  • Final penetration potential of the gun with early monobloc DU projectiles is something in the region of 22" (550mm) at 2000y (putting it on par with Mango and Vant). Being able to store and handle a longer projectile (ie: above 27") would probably allow something a bit better than Snivets. 
  • Low-pressure charges are shortened (17.1" / 435mm) and come with an ejection spring to work with the same storage tubes as the high-pressure charges.

3.     Secondary weapons - 3 x .30 cal MG, 1 coaxial, 2 in mountings attached to the commander and loader's turret hatch

 

4.     Link to Appendix 3

 

B.    Optics:

 

1.     Primary gunsight: single axis stabilized gunner’s sight

 

2.     Secondary gunsight: vertical coincidence rangefinder (stadiametric, 39.4" (1m) base), doubles as a redundant back-up sight.

 

3.     Miscellaneous optics:

  • Commander and loader's rotating hatches, including vertically trainable (+/- 15 degrees) periscope in front of hatch, degree markings on hatch ring to allow rough direction of gunner to target.
  • Driver's periscope, vertically trainable +/- 15 degrees

 

C.    FCS:

 

1.     List of component systems, their purpose and the basic system architecture:

  • Simple electronic gun-follows sight fire control system (encoder connected to sight mirror feeds elevation data into a transistor-based PID controller, which tries to match position on a similar encoder connected to the gun. When gun position and sight position align, the firing mechanism is electronically triggered).
  • LRF mounted above barrel, solid-state components, maximum operating range of 5km in clear conditions, average estimation error of 1%. Uses flashlamp-pumped ruby laser, optical sensor, quartz timing circuit and the sequential event time sampling approach (with post-sampling amplification) to allow time-of-flight rangefinding using a lower timebase and bandwidth compatible with current electronics.

 

2.     Link to Appendix 3.

 

Fightability:

 

1.     List vehicle features which improve its fightability and useability:

 

  • Engine bay approach simplifies engine and transmission replacement via rear bay doors.
  • Generous rear hull roof hatches simplify servicing and maintenance.
  • Bolt-on suspension units simplify field replacement and repair.
  • Commander and loader's hatch design improves buttoned-up visibility 

 

Additonal Features:

 

 

Free expression zone: 

 

"...bellicis"

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 Brownsville Armour Engineering Systems FV601 “Cossack” for Main Battle Tank 2247 [FINAL]

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glLFZ0S.jpg

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Isometric, left side, front and top view of the FV601. On the right is the base configuration, on the left the FIBUA configuration

 

3D model freely available at

https://3dwarehouse.sketchup.com/model/9907c803-fb6e-434f-be49-4eb79f7b9c6b/FV601-Cossack 

 

Parameter

Base configuration

FIBUA configuration

Mass, combat

126600 lbs

143000 lbs

Mass, armour

53200 lbs (42 %)

70500 lbs (49.5%)

Length, combat

38’1”

31’7”

Length, transport

32’3”

26’6”

Length, hull

22’6” (without drop tank)

24’8” (with drop tanks)

24’11”

Width

12’2”

13’5”

Height (at minimum ride height)

7’8” (turret roof)

8’3” (top of periscope)

9’7” (top of machine gun)

Ground clearance

Adjustable between 18” and 22”

Ground pressure (psf)

1746 NGP, 4295 MMP

1972 NGP, 4834 MMP

Speed

45 mph on road

30 mph off road

Range

558  mi on internal fuel

658 mi  with drop tanks

558 mi on internal fuel

Crew

4: commander, gunner, driver, radio operator

Main armament

5” L/55 smoothbore gun, 5x24” unitary cartridge

16 rounds autoloader + 16 rounds stowed

5” L/40 smoothbore gun, 5x24” unitary cartridge

16 rounds autoloader + 16 rounds stowed

Secondary armament

 (1) coaxial 0.30cal Medium machine gun (900 rounds)

 (1) 0.30cal Medium machine gun (450 rounds) on gunner’s skate mount

 (1) 0.50cal Heavy machine gun (100 rounds) + (1) 0.30cal Medium machine gun (450 rounds) on commander’s ring mount

  (1) 0.50cal Heavy machine gun (100 rounds) on auxiliary mount

 

(900) 0.50 rounds stowed

(8100) 0.30 rounds stowed

 

BAE Systems’ FV601 “Cossack” is a fighting vehicle intended to not only meet all the requirement, but also exceed them, especially mobility requirements. The design also emphasises ease of maintenance and upgradability,  making it the ideal vehicle for the current as well as the next fight.

The FV601 is offered in two configurations: a base configuration, which was designed to achieve every requirement and counter the current threats of the battlefield while offering ample room for upgrades; an add-on FIBUA (Fighting In Built Up Areas) kit, to be installed on vehicles deployed in an area of operation where heavy urban fighting is to be expected. The FIBUA kit can be added to any base configuration “Cossack” in the field in a few hours, not requiring more than hand tools (except the installations of the barrel, requiring light engineering support).

I Mobility

 

 

1)     Link appendix 1: https://drive.google.com/file/d/1Gc4sadYGZEAemXzOxyERPgLGvRF2rgSr/view?usp=sharing

 

Spoiler

em4uz9Q.jpg

View of the mobility elements: tracks, suspensions, powerpack and fuel tanks

2)     Engine : V-12 diesel, 2904 ci displacement, liquid cooled (MTU MB-873), with air filters and sand scrubbers for operations in desert environment. Because it is an early development engine, it was downrated to 1400hp to provide better reliability.

3)     Transmission : Hydromechanical powershift, steering and reversing, 4 forward and 2 reverse, transmission to rear sprocket (RENK HSWL 354)

4)     Fuel : diesel fuel, 5110 lbs in sponsons, possibility to add (2) 55-gallons fuel droppable. 558 mi range on internal fuel, 658 mi with drop tanks

5)     10 kW diesel auxiliary power unit and (8) NATO 6T batteries, to power electrical systems with engine off

6)     (7) 26” roadwheels each side, independent hydro-pneumatic suspensions, with centralised tank and control station; adjustable ride height and stiffness, as well as the possibility to tilt the tank for additional 7° elevation/depression, and (1) idler on each side mounted on swing arm with hydraulic piston to allow easy track tensionning

7)     Ground clearance adjustable from 18” (as depicted in model) to 22” on the move, down to 12” at a stop for minimal profile

Spoiler

LQbls7z.jpg

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View of the FV601 at several ground clearance: 12" (lowest possible at a stop), 18" (lowest ride height),, 22" (highest ride height)Vie

 

8)     18” total travel, 6” compression 12” rebound

9)     29” double pin, double body, rubber padded tracks (widened Diehl 570P)

10)  Engine, transmission and ancillary equipment packed together in a powerpack, for easy (30 minutes) change in the field

11)  Low width (146” with base skirts) and weight (MLC 70 for all configuration) allows easy crossing of bridge and transportation by truck.

 

 

II Survivability

 

 

1)     Link appendix 1: https://drive.google.com/file/d/1Gc4sadYGZEAemXzOxyERPgLGvRF2rgSr/view?usp=sharing

 

2)     Link appendix 2: https://drive.google.com/file/d/1wSJriDjGY9EeamhG7TuZ2EJRvt5aVtg9/view?usp=sharing

 

Summary table:

Unless specified otherwise, protection angles are given in degrees from centerline

“elev” = elevation

 

 

Base configuration

FIBUA configuration

Threat

Estimated penetration

Turret

Hull

Turret

Hull

6in HEAT projector

8”

180°, 10° elev

90°, 10° elev

180°, 10° elev

180°, 10° elev

4in/54 HVAP

12” @1200yd

50°

47°

61°

62°

8” @2000yd

63.75°

57°

79°

80°

3.6in RPG

14.4”

60°, 45° at 10° elev

40°, up to 10° elev

90°, up to 10° elev

90°, up to 10° elev

4in/54 APFSDS (*)

12” @ 2000yd

34°

32°

50°

53°

5in APFSDS (*)

20” @ 1000 yd

23°

N/A

30°

33°

18” @ 2000 yd

26°

23°

33°

36°

2in/4in tandem RPG

10”/20”

N/A

N/A

25°

41°

NUB tandem missile (*)

10.8”/26.4”

N/A

N/A

16°

N/A

 

(*) estimated future threats

 

Spoiler

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View of survivability elements: armour (grey and tan: steel, black: NERA), smoke system

3)     Ammunition separation (in bustle and rear hull), stored under blow out panels

4)     Separated hydraulics in bustle (under autoloader), with automatic cut-off

5)     Fuel stored on the outside of the main hull, to prevent fuel drippage inside crew compartment in case of penetration

6)     Automatic fire suppressions system in crew compartment, engine compartment and all (3) ammunition compartments

7)     Low profile and 10° gun depression, allows low probability of hit especially in hull down position

8)     (16) fixed, smoke grenade launchers, in addition to radar- (based on (6) AN/APS-13 radar) and laser warning receiver-cued rotating grenade launcher ( (2) launchers, (3) ready rounds + (18) reloads each) allows to avoid hit by ATGM as well as avoid detection

9)     Complete duplication of crew stations: commander and gunner, and driver and radio operator can accomplish each other’s role while staying at their station, allowing the crew to maintain combat readiness even after suffering casualty, down to only (2) crew members

10)     Each crewmember has his own hatch and handrails for easier egress in case of emergency. Turret crew's hatches are always usable, while hull crew's hatches are usable when turret is turned less than 105° to either side. In addition, when the turret is turned more than 60° to either side, hull crew members can egress through the turret basket

11)  Added protected weapon station in FIBUA configuration, allowing the commander to remain protected from small arms (up to .50cal) while standing out of his hatch for better situational awareness in tight environments

(*) estimated future threat

III Firepower

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View of firepower elements: main gun, autoloader, optics, fire control systems, secondary weapon stations, ammunition storage

1)     Link appendix 1: https://drive.google.com/file/d/1Gc4sadYGZEAemXzOxyERPgLGvRF2rgSr/view?usp=sharing

 

2)     Main weapon: L1 Gun (L1A1 Gun for FIBUA configuration)

Spoiler

 

a.      Smoothbore gun, vertical sliding breach, 10° depression/20° elevation

b.      5” calibre, L/55 (L/40 for L1A1)

c.      Rounds (unitary stub-cased rounds):

                                                    i.     L3 APFSDS: main anti-armour round, 1.25” diameter rods, 7.5” tungsten precursor rod + 11.25” steel rod, 17” flat penetration at 1 mile

                                                   ii.     L4 HEAT-FS: secondary anti-armour/anti-materiel round, based on soviet 3BK14, 20” flat penetration

                                                  iii.     L5 HE-FS: main anti-personnel round, based on soviet 3OF19, 106 ounces HE

                                                  iv.     L6 Canister: secondary anti-personnel round, for close-quarter environment

d.      (16) rounds in belt conveyor bustle autoloader, (16) in hull ammunition compartment ( (8) on each side), separated from crew compartment and under blow-out panels for safety

e.      2-plane electro-hydraulically stabilised, independent, gun-follow sight, hunter-killer fire control system. (3) main sighting systems, each operatable from both gunner and commander:

                                                    i.     Main gunner’s sight

                                                   ii.     Secondary gunner’s sight

                                                  iii.     Commander’s

f.       Hydraulic recoil absorber and recuperator, 15” travel

g.      Muzzle reference system

 

3)     Secondary weapons:

Spoiler

a.      .30cal coaxial machine gun

                                                    i.     (900) ready rounds

                                                   ii.     slaved to main gun

b.      .30cal gunner’s machine gun

                                                    i.     (450) ready round

                                                   ii.     Mounted on skate mount

                                                  iii.     Can be stabilised and slaved to any main sighting system, secondary sighting system or manually operated

c.      .50cal Heavy machine gun + .30cal Medium machine gun:

                                                    i.     (100) .50cal ready rounds + (450) .30cal ready rounds

                                                   ii.     Mounted on commander’s ring mount with video camera

                                                  iii.     Can be stabilised and slaved to any main sighting system, secondary sighting system, aimed through own video camera or manually operated

d.      .50cal auxiliary machine gun

                                                    i.     (100) ready rounds

                                                   ii.     Mounted on pintle mount with video camera

                                                  iii.     Can be stabilised and slaved to any main sighting system, secondary sighting system or aimed through own video camera

e.      (900) .50cal and (8100) .30cal stowed rounds

 

4)     Optics and fire control system

Spoiler

a.      Gunner’s primary sight

                                                    i.     2-axis independently electrically stabilised periscopic mirror head

                                                   ii.     10° traverse each side, 10° depression, 20° elevation

                                                  iii.     Operatable by both gunner and commander

                                                  iv.     Laser rangefinder and video camera

                                                   v.     Image intensifier for night operations

                                                  vi.     x1 eyepiece, and x3-15 eyepiece

                                                vii.     In conjunction gunner’s secondary sight, can act as third backup rangefinder

                                               viii.     Ballistic window rated against small arms, ballistic shutters to protect against 20mm autocannon when not in use

b.      Gunner’s secondary sight

                                                    i.     1-axis independently electrically stabilised periscopic mirror head

                                                   ii.     10° depression, 20° elevation

                                                  iii.     Operatable by both gunner and commander

                                                  iv.     Image intensifier for night operations

                                                   v.     x1 eyepiece, and x3-15 eyepiece

                                                  vi.     In conjunction gunner’s primary sight, can act as third backup rangefinder

                                                vii.     Ballistic window rated against small arms, ballistic shutters to protect against 20mm autocannon when not in use

c.      Commander’s main periscope

                                                    i.     2-axis independently electrically stabilised periscopic mirror head

                                                   ii.     360° traverse, 10° depression, 40° elevation

                                                  iii.     Operatable by both gunner and commander

                                                  iv.     Laser rangefinder and video camera

                                                   v.     Image intensifier for night operations

                                                  vi.     x1 eyepiece, and x3-15 eyepiece

                                                vii.     In conjunction gunner’s secondary sight, can act as third backup rangefinder

                                               viii.     Ballistic window rated against small arms, ballistic cover rated against .50cal

d.      Auxiliary rangefinder

                                                    i.     View slaved to gunner's sight (shares the mirror head with Gunner's secondary sight on the right, and it's own mirror on the left)

                                                   ii.     Operatable by both turret crewman

                                                  iii.     large 4' base width, for better long range accuracy

e.      Auxiliary sights

                                                    i.     Each crewman has a periscope with (3) 45° horizontal field of view, 5° down and 10° up

                                                   ii.     (1) camera is mounted on the commander’s weapon station and auxiliary machine gun mount

                                                  iii.     Image intensifier equipment can be mounted on central window of hull crew’s periscope for night driving

f.      Fire control computer

                                                    i.     Capable of independently handling all sights and weapons

                                                   ii.     Gun-follow sight

                                                  iii.     Each machine gun can be slaved to any sight

                                                  iv.     Each crewman (turret and hull) equipped with a video display and controller, allowing him to control weapons equipped only with a video camera

                                                   v.     Normal fire control procedure for main gun:

                                                              1.      Commander spots target and slew main gun to cue

                                                              2.      Gunner ranges target with LRF

                                                              3.      Sight sets optical rangefinder (either the independent rangefinder, or combination of primary and secondary sight) to range, and gunner checks range

                                                              4.      Gunner aims and fire

Because backup are provided for each element, the procedure can be kept even in case of battle damage

                                                  vi.     Elevation, cant temperature and wind sensors for better long range accuracy

 

5)     Link to appendix 3: https://drive.google.com/file/d/1_t4XFbeko5CRqf4QwJDEQIdXiBQM3sMh/view?usp=sharing

 

IV Fightability

1)     Ergonomics

a.      Comfortable and adjustable crew seats

b.      Every tasks can be accomplished seating

c.      Fume extractor

 

2)     Communications

 

Spoiler

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View of communications elements: radio, radio direction finder, antennas, back-up battery

a.      AN/VRC-47 radio

                                                    i.     (1) transmitter receiver and (1) auxiliary receiver to monitor second channel

                                                   ii.     30 to 79.95 MHz in 50kHz step

                                                  iii.     Around 30 miles range

                                                  iv.     (2) 3-ft whip antenna and (2) 10-ft whip antenna

b.      AN/PRD-1 radio direction finder

                                                    i.     100 kHz to 30 MHz

                                                   ii.     Used to spot enemy communications

                                                  iii.     (1) diamond antenna

 

3)     Crew sustainment

 

Spoiler

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View of crew sustainment elements: crew stations, drinking water tank, air conditionning unit, boiling vessel

a.      Air conditioning unit (cooling and heating) for better operation in hot environment, as well as better durability of electronics. NRBC filters are integrated

b.      12.54 cu-ft drinking water tank for operations up to 20 days in hot environment

c.      Electric boiling vessel, to be able to eat without exiting the vehicle

d.      Ample storage space for crew equipment in hull front and turret storage bin in the rear

 

4)     Other

a.      Self-recovery kit with tow bar and tools

b.      Frontally removable gun for easy maintenance, as well as easily removeable powerpack

c.      Possibility to fix a dozer blade for clearing operations or self-entrenching

d.      Infantry telephone for better coordination in combined arms operations

e.      White light and IR headlight for night driving + possibility to mount IR spotlight over barrel

f.       Ammunition loading hatch in turret rear to ease reloading the autoloader from the outside, in addition to the ability to reload the autoloader from the inside through the reloading hatch by elevating the barrel

g.      (4) crew members for easier maintenance and day-to-day operations 

V Upgradability

Spoiler

1)     Chassis has ample weight allowance due to overbuilt suspensions and engine: 19 000 lbs can still be added before reaching the ground pressure limit, and power to weight ratio would still be 19hp/st

2)     Engine can still be uprated to 1500hp as originally designed

3)     Ample engine compartment volume for future upgrade engine

4)     Armour elements are bolted to the hull and turret structure, allowing for easy future upgrades

5)     Ample volume in hull front and turret for additional equipment

6)     Bustle can easily be lengthened for future rounds

7)     All electronics are mounted in shock-proof racks or bolted, so can be easily swapped

8)     Main gun is removable from the front, for both easier maintenance and upgrade

9)     Plans in preparation for additional variants based on chassis:

a.      Armoured engineering vehicle

b.      Armoured recovery vehicle

c.      Self-propelled air-defence gun

d.      Self-propelled artillery

e.      Driver-training vehicle

f.       Bridge-layer

 

 

 

 

 

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VK-55.01 - Versuchsträger NK

 

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Table of basic statistics:

Parameter

Value

Mass, combat

~64,700 kg

Length, combat (transport)

10.25m (7.3m hull)

Width, combat (transport)

4.9m with heavy skirts, 4.08 m without (3.8m without suspension frames)

Height, combat (transport)

2.5m turret roof edge (2.05 m without suspension frames)

Ground Pressure, zero penetration

1967 psf

Estimated Speed

38 mph

Estimated range

465 mi (at 38 mph on the road)

Crew, number (roles)

3 (driver, gunner, commander) or 4 (+loader)

Main armament, caliber (ammo count ready/stowed)

120 mm smoothbore cannon (Rh-120 featured), 33 shells ready in turret bustle, 16 stowed in the rear of the hull

Secondary armament, caliber (ammo count ready/stowed)

20 mm auto-cannon (Rh202 featured)
3 or 4 machine guns calibre 7.62mm

 

Vehicle feature list:
Mobility:

1. Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2. Engine - transversely mounted 1500 HP (1100 kW) V-12, turbocharged, liquid-cooled diesel engine. 4 cooling units. Cold air infusion at exhaust. Torque converter. 23.15 hp/t

3. Transmission - preferable Renk HSWL 354 level transmission adjusted for transverse mounting or similar, 4 forward and 4 rearward gears.

4. Fuel – diesel, 2930lbs in main hull tank, 720lbs in reserve rear hull tank, 2x 370lbs in sponsons, 465 mi at 38mph on roads

5. Engine bay has 3 m³ volume. Transverse mounting is envisioned but a traditional position, to the right of the driver, is feasible.

6. Suspension – (featured) coil spring around telescopic leads on individual road wheels with 480mm travel. 10 Overlapping road wheels with 3 return rollers per side and forward sprockets are mounted in an individual frame, attached to the hull. 400-780mm ground clearance depending on the suspension frame mounting.

    Torsion bars, more complex hydropneumatics or single line wheels possible. Torsion bars consume 30mm of ground clearance and fit between the bottom plate and mine protection.

7. Tracks are modern version of Tiger 1 tracks with 740mm width. Ground contact length 4.85m

Survivability:

Two stages of protection. Mission survivability in 20 degree frontal radius to each side for the listed ammunition and ranges. Crew survivability in 100 degrees to each side for the listed ammunition and ranges. 360 degree protection from 6 in HEAT projector. Values are valid for 20 degree vertical inclination, for munition other than auto-cannon and lower.

1. Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2. Appendix 2 - armor array details.

3. The concept of citadel. Separation of the crew from ammunition, fuel and hidraulics with armoured walls.

4. Turret crew sits in a widened turret basket (1.87m diameter) with only 550 mm height in the turret itself (autoloader version).

5. Doubled, spaced walls all around the crew compartment

6. Crew has a main rear exit door, additional cupola hatches and an emergency bottom opening under the driver’s seat

7. Ammunition in the turret and in the rear hull feature blow-out panels.

8. Autoloader is separated from the crew with metal plates and incorporates roof blow-out panel.

9. Spall liner on all interior walls.

10. Automatic fire extinguisher.

11. Roof armour can trigger and survive HE artillery hit and anti-tank bomblets.

Firepower:

A. Weapons:

1. Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2. Main Weapon:

a. High pressure smoothbore cannon, min -8/+20 deg inclination with double joint mount.

b. 120mm L55 13 or 17 MJ bore energy with two breech sizes and corresponding ammunition. Also tested with Soviet 125mm, 105 L7 and the both experimental Rheinmetal 130mm and NpzK-140 140mm cannon for up to 20MJ bore energy.

c. APFSDS steel arrow with tungsten core, HEAT-FS, HE, APFSDSPC (Armour piercing fin-stabilised discarding sabot with propelled core) with thickened hollow arrow and an explosive propelled tungsten core inside (if physics have nothing against).

d. 33 shells in turret bustle within a rotating frame. 16 vertically stowed in the hull rear also within a rotating frame and an integrated crane.

e. under FCS section

f. Two stage autoloader

    first stage (as semi-autoloader) delivery of shell into the turret

    second stage – elevation and insertion into the breech

    manual reloading or semi-autoloading possible (gunner shifts in front of the commander, loader in his place)

g. Three shell drum for quick following shot and alternative shell type. Feldjustierspiegel (collimator).

    Thermal sleeve with barrel protection and flash suppressor.

3. Secondary weapon:

      20mm autocannon in an extendable tower behind the commander.

    Tertiary weapons:

      three 7.62mm MGs, one coaxial with the main cannon, one coaxial with the auto-cannon and another stored in the back with a slit for rear mounting (not displayed in the images). Additional gunner/loaders mg, as an improved Hetzer's remote mounting.

4. Appendix 3

B. Optics:

1. Leopard 1 level optics with additional independent stabilisation (if technology permits, alternative there is a dampening switch).

Auxillary gunner’s optics.

2. Rotating periscopes for driver and gunner/loader.

3. Scissor periscope for the commander in the auto-cannon tower. Alternative aiming device in the tower for the commander.

4. IR-based night vision and light amplifier for gunner and commander (the lamp not visualised).

5. Side vision slits for the driver.

6. 2 all around cupolas for gunner/loader and commander.

7. Gunners and commanders reticule with ranging triangles (Zeiss optics from ww2)

C. FCS:

1. 2-axis stabilisation, stereoscopic rangefinder (or laser), mechanical ballistic computer. Weapon slaved to the optics (if technology permits). Limited duplicate aiming handles for commander with an override. Mechanical target marking board in the commander's cupola.

2. Main cannon and auto-cannon can be interchangeably slaved to one another end correspondingly to gunners and commanders controls. Sharing one stabilisation engine (without mutual optics).

3. Appendix 3

Fightability:

1. Heavy tracks for anti-mine protection with integrated anti-mine armour in the hull floor.

2. Ventilation for crew compartment and engine bay with air conditioning (if technology permits)

3. Smoke dispensers and mortars in the side containers of the turret bustle

4. A radio with a reserve and dynamo reserve engine.

5. Food, water and personal item storage in the three containers in the rear of the hull.

6. Parallel manual controls through simple mechanical transmissions and levers.

7. Auxiliary diesel engine, attached to reserve fuel tank and hydraulic pump, as a limited backup power source (with the exception of mobility).

Additonal Features:

      1. Available add-on armour for pre-war near-peer protection level without exceeding 70 tonnes.

      2. White colour bucket and brush.

      3. In the appendices.

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Persson Engineering Solutions and Brewing, Main Battle Tank, MBT-01, "Gigan"

FINAL

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Table of basic statistics:

Parameter

Value

Mass, combat

82 tonnes/180779 lbs

Length, combat (transport)

Hull 26.25 ft. Total 37.15 ft (to gun crown at 0°)

Width, combat (transport)

13.091 ft

Height, combat (transport)

Turret Roof 7.111 ft. Maximum permanent height 7.718 ft (to highest permanently fixed feature.) Total height 10.281 ft (to top removable feature)

Ground Pressure, zero penetration

1967 psf

Estimated Speed

40-43 mph

Estimated range

470 miles (38 mph on road)

Crew, number (roles)

3 (driver, gunner, commander)

Main armament, caliber (ammo count ready/stowed)

5" L50 rifled gun. 42 rounds total (18 in autoloader, 24 in 4x6 hull storage bins)

Secondary armament, caliber (ammo count ready/stowed)

5 machine-guns, 4 being independently moved: 2X.50" HMG (1 coaxial, 1 for commander.) 3X.30" GPMG (1 on commander's periscope, 1 for gunner, 1 on the bustle for dismount troops.) 1000 rounds for each HMG, 2000 rounds for each GPMG

Vehicle designer’s notes: explain the thought process behind the design of the vehicle, ideas, and the development process from the designer’s point of view.

Vehicle feature list:
Mobility:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Engine: Turbo Diesel V12, 2904 cu in, similar to the old MB 873 found in the archives of the pre-happening world. Rated for 1500 to 1800 HP. Longitudinally mounted on the rear. Liquid cooled, heat exchangers located under the engine bay cover.

3.     Transmission: Double differential, 10 speeds (5 forward, 5 in reverse), neutral steering capable. Similar to the RENK HSWL 295TM found on the archives of the pre-happening world. Transversely mounted on the rear.

4.     Fuel: Diesel, or kerosene, jet-fuel or bio sourced analogue, or any high cetane number fuel given correct tuning and adequate lubrication properties. 680.50721 US and A imperial Gallons, in 4 internal tanks. Provision for extra fuel tanks inside the bottom double hull at the user's discretion (normally no installed.)

5.     Other neat features in the engine bay.

6.     Suspension: "Dumb" hydro-pneumatic suspension, suspension elements located on housing units bolted externally to the sides of the hulls and connected to the suspension arms via a gearing system, this is done in order to reduce the unsprung mass of the suspension as well as to reduce the size of the arms, keep the hydro-pneumatic elements further away from obstacles while still keeping replacement and field service easy. 14 sprung road wheels, 2 idler/track tensioner wheels on the front, 2 driving sprockets on the rear, 14 return rollers.

Survivability:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Link to Appendix 2 - armor array details.

3.     Non-specified survivability:

                  a. The rear hull ammo stowage units are located in water tanks, containing 56.5 gallons of water each, those can double as energy replenishment for the heat exchanger of the engine, or for emergency drinking water for the crew.

                  b. The backup shared optical range finder allows for the commander to fire the gun in case the gunner is unable to do so

                  c. Turret features a large cargo rack that allows for more than enough capacity for pioneering equipment, camping equipment, crew belonging, extra equipment like smoke grenade launchers, add-on/ad-hoc spaced armor, spare parts, or a place for dismounted troops to do things.

                  d. Tank is equipped with two long range radios and two large antennas, guaranteeing redundancy and simultaneous communication with other tanks and a base for example.

                  e. The crew compartment in the turret is set up as low as possible in the hull, with the commander and gunner siting in a semi-reclined position.

                  f. Turret crew compartment is separated on the middle by the gun compartment, with armored bulkheads on both side, with a interconnected part on the front of the compartment. This allows for redundancy of the crew and the change that a side penetration will not kill/incapacitate the whole turret crew.

                  g. The diver is surrounded by large fuel tanks on both sides, adding an extra layer of protection.

                  h. The turret is a combination of the "cleft" and "wedge" concepts, it offer a very low silhouette in normal conditions and the angled roof further reduces the silhouette in a hull down position with the front raised. Due to the aforementioned separated gun compartment a dead-on penetration of the mantle, while obviously a mission-kill event, will probably not affect the crew.

                  I. The turret can be rotated electrically or manually by all 3 crew members. This is to extend the fighting endurance in case of the loss of crew and systems, and to allow the possibility of the driver to escape from his main hatch.

Firepower:

A.    Weapons:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Main Weapon: 1X Modified Co-Developed G46 gun

a.      Type: Rifled, L51 automatic loading.

b.      Caliber: 5"x33" Texan (127x840mm), unitary, steel non combustible case. Provision for future semi combustible unitary cases.

c.      ammunition types and performance: APDS (24" of RHA penetration at muzzle), HE (175.45 oz of composition B explosive), HEAT (15.75" of RHA penetration), experimental APFSDS.

 

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Above, ballistic data for the APDS round.

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Above: Detail of the APDS, it's a capped DU penetrator with a ballistic cap and wobble cap (also DU), in an aluminum sabot.

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Above: Penetration data for the APDS

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Above: Detail of the HEAT, high pressure.

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Above, detail of the HE munition.

 

d.     Ammo stowage arrangement: 42 rounds total. Primary/ready stowage, 18 rounds in belt type auto-loader on bustle, selectable ammo and capable of changing/unloading rounds, capable of being internally re-stocked from both the commander and gunner postions. Secondary stowage, 24 rounds in 4X6 sealed bins, two in front and to the sides of the turret basket inside the fuel tanks, two on the sides and rear of the turret basket inside water tanks. Primary stowage has blow-off panels on the roof and blast door separation it from the crew compartment. Secondary stowage is in individualized sealed bins surrounded by fluid.

e.      FCS: Primary FCS: Ballistic computer connected to active 2 axis stabilizer, laser range finder, day gunner sight and IR gunner sight, automatically adjust elevation and point of impact after a range measure is "locked". Secondary FCS: Gun Slaved to backup optical range finder

f.      Neat features: Muzzle Brake, provision for extra coaxial MG, or optic sight, insulation thermal sleeve, growth potential.

3.     Secondary weapon: 3x GPMG, .30 caliber, one on the gunner's cupola track, one in a the rear bustle for dismounted troops, one remote controlled on commander's periscope/panoramic sight. 2x HMG, .50 caliber, one coaxial on the main gun mantled, one on the commander's cupola track. Exact gun type and total number installed varies and is up to the user. This is more to exemplify the total installation points.

            a. Type: HMG DShk or M2 or similar. GPMG M240 or similar type.

            b. Caliber: HMG .50 BMG or similar. GPMG .308/7.62x51mm NATO or similar.

            c. AP, API, tracer, etc...

            d. Ammo is stored internally from a single stowage of 1000 rounds belt for the coaxial gun and 2000 rounds belt for the panoramic sight gun. Other guns are fed from externally mounted boxes/pouches contained belts of 100 to 200 rounds. Other boxes/pouches stored internally on the crew compartment on the turret next to the blast wall.

            e. Coaxial gun is slaved to the main gun and its FCS. Commander's periscope/panoramic-sight gun is remote controlled and stabilized on 2 axis. Other guns are manually controlled and non stabilized. Possible provisions for remote control weapon stations are possible in the future.

            f. Dismounted troops have access to their own gun on the bustle. Commander has two gun options, one allowing him to fire from a closed hatch. HMG coaxial offers better anti material capability than the usual .30 coaxial on most tanks. Has grow potential for more remote controlled weapon stations an extra coaxial if so desired.

4.     Link to Appendix 3 - Weapon system magic. This is where you explain how all the special tricks related to the armament that aren’t obviously available using 1960s tech work, and expand to your heart’s content on estimated performance and how these estimates were reached.

B.    Optics:

1.     Primary gunsight: Gunner has access to a daytime stabilized optic with a 0-10 magnification, a stabilized IR night sight with IR floodlight (located on top of the mantled) with a 0-10 magnification, a laser range finder and a back-up optical rangefinder located on the rear of the turret and shared with the commander. Commander has access to it's own panoramic sight/periscope with day time and IR modes, 0-8 magnification, and the shared backup range finder.

2.     Other optics: Gunner and Commander have access to an array of fixed periscopes on their hatches giving a 360° field of view (not counting obstacles.) Driver has access to 3 periscopes giving a wide field of view.

C.    FCS:

1.     List of component systems, their purpose and the basic system architecture.

            a. Gunner primary sight, located on the left side of the turret rooftop, enters the crew compartment via a hole behind the armor modules. Daytime optic, connected to ballistic computer, laser range finder and backup optic rangefinder. Stabilized on 1 axis

            b. Gunner secondary sight, located on the same housing as "a", IR, same functions.

            c. Commander panoramic sight. Optic and IR combo on same rotating and extensible housing, on the same location as the gunner's sights, but on the right side. Not connected to the FCS per-se, but it's able to "lock" a direction and then command the turret to rotate to that position. Stabilized 2 axis

            d. Laser range finder and IR illumination unit, located above the mantle, parallel to the gun bore. IR and Visible laser receptors/emitters, 2 IR floodlight on the sides. Permanently fixed to mantle and passively stabilized vs the gun stabilization.

            e. Backup optical rangefinder. Mounted on the back of the crew compartment, above the blast door and extending to the sides of the turret, outside. Slaved to the gun and its stabilizer.

            f. Ballistic computer. Based on the electronics of the flight computer of the new crop of guided missiles. Provides adjustment and coordination of the above components, depending on vehicle speed, distance, ballistic behavior of ammo type, vehicle inclination, activelly tries to compensate or dampen vehicle movement, updates reticle for adequate POI and adjust gun and turret position for a "point and shoot". Can be manually overridden. Currently the R&D department is investigating the feasibility of accounting wind and thermal mirages.  Computer is located under the gun compartment in the front of the turret basket.

2.     Link to Appendix 3 - weapon system magic, if you have long explanations about the workings of the system.

Fightability:

1.   Very low profile, smaller target, less change of not only hitting the vehicle but also hitting a vital component.

2. Even lower profile in a hull-down, inclined position with basically no vital components exposed.

3. Great ride quality, guarantees crew comfort, less stress on sensible equipment, less work of the stabilizers and better control of the vehicle in rough terrain.

4. Hunter-Killer capability allows for more efficiency of the crew, better situational awareness and quicker reaction times.

5. Good crew survivability, guarantees the safety of investment in terms of money and money spent on training a professional crew as well as safeguarding the data they collected even in the case of a defeat.

6. Good offensive capability and flexibility when dealing with multiple unarmored targets.

7. Good serviceability/repairability on the shop or on the field. Even complex to repair or single-use systems can be replaced on the field as a "Plug and play" affair.

8. Great endurance in terms of crew livability and ammo/fuel/supplies. Guarantees longer top-performance period for the crew as well as increased survival changes in case of being removed from the logistical supply chain.

9. Multi fuel capability in a known and well understood engine format, features that facilitate logistics and possibly foraging.

10. While not a currently widespread threat, laser guided ATM are a possibility and the design team considered prudent to not just rely on passive defenses but take a more pro-active aproach and include a IR dazzle feature in the two IR flood lights.

11. The auto-loader design allows for the replenishment of the ammo supply from an external source without the need for the crew to leave the interior of the vehicle. While not ideal, and somewhat cumbersome it offers the possibility to do so while the crew remains in a near-ready condition.

Additional Features:

      1. As previously mentioned the modular nature of the composite armor modules allow not only for easier repairs and potentially avoiding the need to refurbish a whole macro component (turret and hull), but also allows to tailor the protection to the needs faced on the theater of operation. For example the arrays can be changed from light NERA to heavy NERA, a combination of both, or a combination with ERA. This also means that long range transport can be facilitated as the tank can be broken down into the tank proper and some armor modules in case there is a weight limitation.

      2. The vehicle has growth potential as one of its mission goals. The modular armor, the multi-fuel system, the large caliber gun, etc. There have been some interesting researches into smooth bores and APFSDS, semi combustible cases, higher operating pressures and exotic materials, and while the design team felt those new technologies aren't mature enough to be incorporated into the current entry, nothing stops the user to request a upgrade of the weapon's system's in the future, without major changes to the rest of the vehicle. The same goes for the

Free expression zone:

This project is dedicated to one of our best engineers that passed away recently due to "circumstances".

pai-de-familia-sucodelaranja.jpg

 

The project is also dedicated to our chief engineers Dr. Eneas

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PS: If necessary the blueprints for the vehicle or any component can be provided to the competition judges.

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Tracked Combat Vehicle 2247 (TCV-47) "Brahman" 

 

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Table of basic statistics:

Parameter

Value

Mass, combat (armor)

110 tons (59.1 tons)

Length, combat (transport)

10.4 yards 

Width, combat (transport)

4.6 yards (4.5 yards)

Height, combat (transport)

4.4 yards

Ground Pressure, zero penetration

 

Estimated Speed

 

Estimated range

 

Crew, number (roles)

4 (Commander, Gunner, Loader, Driver) 

Main armament, caliber (ammo count ready/stowed)

6.1 inch L/34 (36 in mechanized turret bustle / 36 protected hull rack) 

Secondary armament, caliber (ammo count ready/stowed)

20mm coaxial, 4x .30 cal GPMG (100x 20mm ready + 800 stored / 1300x .30 cal ready + 1200 stored*)

* 2 of the .30 MGs are placed in the hull sponsons as "Docings" (Driver Operated Close IN Gun System), with 500 rounds each. 

 

Vehicle designer’s notes: explain the thought process behind the design of the vehicle, ideas, and the development process from the designer’s point of view.

Vehicle feature list:
Mobility:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Engine- V-12 diesel (based on MB 838), displacement, 1100 hp, liquid cooling, forced air over the cooling surface

3.     Transmission - 5-speed automatic, arrangement, "flip gear" allows for using all 5 gears in forward or reverse

4.     Fuel - diesel, volume available, stored in engine bay (2 tanks) and hull sponsons (2 tanks) , estimated range, neat features.

5.     Upper front plate flips up (via hydraulic pistons) to provide normal access to the engine and transmission. Entire upper plate can be lifted off the tank (7+ ton crane required) to lift engine and transmission out of the engine bay. 

6.     Suspension - Torsion bar, Travel, ground clearance, neat features.

Survivability:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Link to Appendix 2 - Turret front: 72.9 inches LoS (66.6 inches at 66*) 

                                           Upper front plate: 49.1 inches LoS (8.9 inches at 10.44*) 

                                           Lower front plate: 28 inches LoS (25.4 inches at 65*)

3.     Non-specified survivability features and other neat tricks - low profile, gun depression, instant smoke, cunning internal arrangement, and the like.

Firepower:

A.    Weapons:

1.     Link to Appendix 1 - RFP spreadsheet, colored to reflect achieved performance.

2.     Main Weapon-

a.      Type

b.      Caliber

c.      ammunition types and performance (short)

d.     Ammo stowage arrangement- numbers ready and total, features.

e.      FCS - relevant systems, relevant sights for operating the weapon and so on.

f.      Neat features.

3.     Secondary weapon - Similar format to primary. Tertiary and further weapons- likewise.

4.     Link to Appendix 3 - Weapon system magic. This is where you explain how all the special tricks related to the armament that aren’t obviously available using 1960s tech work, and expand to your heart’s content on estimated performance and how these estimates were reached.

B.    Optics:

1.     Primary gunsight - type, associated trickery.

2.     Likewise for any and all other optics systems installed, in no particular order.

C.    FCS:

1.     List of component systems, their purpose and the basic system architecture.

2.     Link to Appendix 3 - weapon system magic, if you have long explanations about the workings of the system.

Fightability:

1.     List vehicle features which improve its fightability and useability.

Additonal Features:

Feel free to list more features as you see fit, in more categories.

Free expression zone: Let out a big yeehaw to impress the world with your design swagger! Kindly spoiler this section if it’s very long.

 

Work in progress

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East Oil Company MBT-1 Monolith

Final

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Parameter

Value

Mass, combat (armor)

110.3 (52.9)

Length, combat (transport)

27.9' (without gun) 51.2' (with gun)

Width, combat (transport)

17.6' (13.9' transport )

Height, combat (transport)

10.1'

Ground Pressure, zero penetration

1918psf

Estimated Speed

37.2mph

Estimated range

444 miles

Crew, number (roles)

3 (commander, gunner, driver)

Main armament, caliber (ammo count ready/stowed)

3/32" L/60 (24 rounds)

Secondary armament, caliber (ammo count ready/stowed)

2x 315/64" automatic mortars (copy of Vasilek) (42 rounds)

 

 

 

Vehicle feature list:
Mobility:

1.      Link to appendix 1

2.     Engine: Object-770 engine

3.     Transmission: Object-770 transmission

4.     Fuel - Type: Diesel

5.     The radiators are deep inside the engine bay with air supplied to them via two ducts mounted along the sides of the engine bay.

6.     Suspension: The suspension is derived from that of the T-10M.

Survivability:

1.    Link to appendix 1

2.   Link to appendix 2

3.     The Monolith has a gun a vertical travel of -12 to +15 degrees. For enhancing its survival in an ambus situation it is equipped with 8 MON-90 anti personnel mines to protect against and deter infantrymen and 2 2B9 Vasilek 315/64" automatic mortars with 21 bombs each to bombard ATGM positions. Furthermore the tank is equipped with two large IR dazzlers.

Firepower:

A.    Weapons: 1x 7 3/32" L/60 (24 rounds), 2x 315/64" automatic mortars (copy of Vasilek) (42 rounds), 3x .50cal HMG (copy of KORD) (1200 rounds)

1.     Link to appendix 1

2.     Main Weapon:  1x 7 3/32" L/60

a.      Type: Smoothbore high velocity gun.

b.      Caliber: 7 3/32"

c.      ammunition types and performance: APFS, AFSDS(steel), APFSDS(segmented DU core), HEATFS(normal),HEATFS(tandem), HEFS (AIX-2)

d.     Ammo stowage: 24 round belt tpe autoloader with chan rammer.

3.     Secondary weapon  2x 315/64" automatic mortars (copy of Vasilek)

b.     315/64"

c.     The full range of the Vasilek's ammunition.

d.     21x2 (42)

e.     Slaved to the gunner's main sight, two plane stabilised.

f.      Both can be set to fire at once or separately allowing for two different types of ammunition to be loaded.

4.      Link to appendix 3

 

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Spoiler

Mk1 APHEFS

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MK1 APFSDS

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MK2 APFSDS

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B.    Optics:

1.     Two plane stabilised 1.5-30x main sight with built in laser rangefinder and image intenisfier.

2.     Two plane stabilised 4-8x backup sight with built in image intensifier, 3 plane stabilised 1.5-30x commanders sight with built in  image intensifier.

C.    FCS:

1.     The commander can mark the azimuth of targets and their priority on the gunner view (achieved through a rotating wheel with lights on it) or alternatively rotate the turret to face what he is looking at, in the event of the gunner being incapacitated the commander can override his controls and slave the turret to the commanders sight.   

2.     Link to appendix 3

Fightability:

1. The vehicle includes an airconditioning system (below the gunners seat) allowing for the crew to remain at a comfortable temperature

2.    The autoloader can be reloaded by two people at once allowing for more rapid reloading and cranes for handling the ammunition are built into the tank (not depicted)

3. The crew are completely isolated from the ammunition and outside environment.

4. The Monolith has been designed so that with relatively minor modernisation it cab even match tanks such as the pre war T-14 Armata, to this end it has massive armor cavities and it's autoloader can accomadate very long projectiles.

Additonal Features:

5. Multiple variants are planned including an APC, IFV and combat engineering vehicle.

6. Its APHEFS shell will cause extreme amounts of damage to lesser armored tanks such as the Californian and earlier Cascadian tanks aswell as light/medium armored vehicles.

 

The centre of the turret bustle, containing the ammunition belt of the aoutolaoder can be entirely removed to allow for rapid reloading if the appropriate equipment is present, if it is not there are two hatches in the rear of the turret bustle to allow for reloading in field conditions. The crew are provided with two light cranes fixed to the turret rear (not shown on the model) to assist in reloading.

 

Link to appendix 1

Link to appendix 2

Link to appendix 3

 

@ Judges, if you have any question please feel free to ask.

 

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