delete013

Why don't you try it too? We wouldn't have these tirades.

Does your mum know how you behave on the Internet?
 
 
(Moderators Note:  If anyone should be ashamed of how a person posts on the internet, it would be the Nazi Apologist in the rooms Mom, that apologists is Delete013.  )

I'm Armenian-Georgian mix, my parents are from a village in Southern Georgian region near Turkish border. There are several german members in this forum, who i respect. I don't care about nationality of people.
 
   You need ability to follow guidlines. I threw people submissions from competitions for less than that, like during one of previous competition when i excluded this forum owner's submission literally because of several mm. Your submission was not getting any favorable or unfavorable treatment.
 
 

If imperial units were so indispensable, you could have said something before or throw my submission out the moment it was posted. Unless there were other plans..

East Oil Company MBT-1 Monolith
Final

 
 
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)
7 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
 

 
 
 
 
 
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.
 

Stolen from otvaga, tankoff did a summary post on Arena systems.
 
   Arena (1993) patent:

   1 are countermunitions in their launchers, placed around turret. 2 is radar station on top of the turret.
 
 
   Arena-M APS with correctable trajectory countermunitions:

   Compared to previous version much less countermunitions and launchers are used, subsystems are more compact. Less weight, statistically less vulnerable to fragmentation damage.
 
 
   Countermunition schematics. CM is connected to launcher with a wire, BTW.

 
 
   Patent for BMP-3 equipped with Arena, pic showing possible use of APS as a system to automatically turn turret of AFV in the direction from which AFV was shot at.

 
   Looks like Arena was offered to Germans in 90s. Pics from Wehrtechnisches Symposium, 1995.

 
 
   One of first article about Arena, 1996.

 
 
   2012 - model of Arena-M (or Arena with correctable countermunitions) was shown.

 
   At RAE-2013 T-72 with shown with similar system, but with some additional changes.

 
 
   Arena-E with correctable countermunitions, video by KBM.
 
50m detection range, minimal reaction time - 0.04s, same direction is covered by at least 2 countermunitions, can intercept incoming projectiles with speeds of 70 to 1000 m/s. Can work of 8 hours without stops, weight - up to 900kg.
   Laser sensors (same as on Shtora) can be part of Arena. APS can be intergrated into BMS.
 

   Countermunition launch. Small holes just under cap/cover probably are impulse jets to rotate countermunition after launch.
 

   Upper schematics proably shows those impulse jets.
 

   Launch.
 
 
   Question if it is actually capable of intercepting top attack threats in configurations shown to public is still open. Max detection range is 50 meters, but how much radars can see "up" is question that i don't know answer for. Vertically aimed launchers suggest that at least ATGM that "overfly" target (like Bill 2 or TOW-2B) are covered by modernised system. Original Arena (at least in 1995 config) was not capable of intercepting overfly ATGMs.   
   Another question without answer is how much "correction" measures can change facing of countermunition. 
 
   Against top attack threats there were ideas to place CMs nearly horizontaly and aim them upwards.

 

You really ought to read something on German history. The designations and the technology only comes from the Nazi party for ideological crusaders. As is with all military things in today's Germany, it is Wehrmacht's legacy, as the latest precursor in the long history of the German/Prussian army. Even if institutions were abolished and the politics tries hard to appear to have broken with the past, many of those people involved in ww2 were very much present during the design of vehicles up until Leopard 2, if still alive, and all had very little to do with politics or ideology. You can't push everything from 1933 to 1945 in the Nazi corner.

Donaudampfschifffahrtselektrizitätenhauptbetriebswerkbauunterbeamtengesellschaft

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





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.
 

Above, ballistic data for the APDS round.

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

Above: Penetration data for the APDS

Above: Detail of the HEAT, high pressure.

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".

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

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

The full name of this combat vehicle is: TCV-47 "Brahman" (Tracked Combat Vehicle)
 

 
No, it's not done, i took a very long break; burned myself out. But since then, I have added commander's and loaders cupolas', vision slits, drivers hatch, turret roof applique, 12.4 tons of hull armor, and 7 tons of turret armor plus a 4.6 ton turret wedge a la Leopard 2A5. Still needs turret storage boxes, hull roof applique, and side skirts. Ammunition and velocity is going to be similar to that used on the M551 of yore, including a gun launched ATGM based on the BGM-71. 

VK-55.01 - Versuchsträger NK
 

 
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.

VK-55.01 - Versuchsträger NK
 

 
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.

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

 



 
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
 
 
 
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
 
(*) estimated future threat
III Firepower

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)
 
3)     Secondary weapons:
 
4)     Optics and fire control system
 
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
 
 
3)     Crew sustainment
 
 
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
 
 
 
 
 

Note the laser warning receivers and the new integration of the SCM60 situational awareness cameras.
 
 
Better accuracy when firing on the move.

Good going!
We'll look forward to your entry.

Greeble get!

Promo shot from the recent ergonomics testing.

Promo shot from the recent ergonomics testing.

Final Entry: Main Battle Tank, 2247, project name "Derebus"
 

 
Main dimensions and statistics
Manufacturer: Paramount-Allen-Fullerton (Para-allful) Conglomerated Mass estimate (as based on CAD model plus ~6600lb to account for drive systems, crew amenities, ammunition and miscellaneous components): 43.1t (39.1mt) fully loaded, fueled. Armour mass (1-2" (25-50mm) RHA base plus ERA, composites, side skirts and engine bay liner): 20.6t (18.5mt) Calculated mass: 43.4t (39.4mt) Crew: 4 (commander, gunner, loader, driver) Length: 246" (6.25m) hull, 379" (9.63m) total  Width:  150" (3.8m) with skirt Height: 95" (2.41m) to top of commander's hatch, 109" (2.77m) total  

Firepower

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.
 
Main gun: 5-inch 55 calibre (127mm L/55) high/low pressure gun “High pressure” = 70000 PSI (480 MPa) operating pressure, 14.16MJ energy. Vertical travel: +15'/-10'  
Ammunition:
46lb (20.85kg) HEAT-FS, penetration of around 21" (535mm) using 122mm BK13 derivative (420mm if using BK13 penetration), 3074fps (937m/s), 9.14MJ using a low-pressure charge (~45k PSI). 46lb (23.2kg) HE, (5.7kg) fill, estimated blast penetration of ~55mm RHA, 2910fps (887m/s) Simple APFSDS (15:1 LD, 550BHN monosteel body, tungsten insert, 115mm cap, ring sabot): 1.57x23.54" (40x597mm) rod, 0.866x5.24" (22x133mm) insert, 14.2/5.2lb (5.6/3.2kg) penetrator/sabot mass, 1800m/s, 15.7/13.8" (400/350mm) penetration at 100/2000y.  
Note: if following the design of 3BM-26, this could be higher in practice. Using DeMarre the estimated penetration is 17.1" (435mm) at 2000y. Upgraded monobloc projectiles could match and eventually improve on this, up to 25.6" (650mm) before needing to rework the ammunition storage.
 
Details:
 
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 2A26 gun), matching the length of the HEAT-FS round. This 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 tubes as the high-pressure charges.  
Storage:
19 charges and 9 active projectiles (HE and HEAT) in armoured tubes in the turret. The tubes are sealed at the front and lead to a blast chimney that outlets to blow-off panels in the turret roof. 10 inert projectiles (APFSDS) are stored in various places in the turret space, held by retaining clips. 16 charges and 8 active projectiles are stored on either side of the driver behind the fuel cells, also using the blast chimney approach (exhausting out the hull sides). 8 inert projectiles are stored in various spots in the hull.  
Secondary weapons: 
.30cal MG as coax Both the commander and loader’s hatch rotate and have mounts for .30 cal MGs.  
Fire control:
Single axis stabilized gunner’s sight Duel axis stabilized main gun Vertical coincidence rangefinder (stadiametric, 39.4" (1m) base) which doubles as a redundant back-up sight. 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). 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. LRF mounted above barrel.  
Note: Industrial espionage has allowed Texan engineers to copy the laser rangefinder proposed for use in the Cascadian M8A1 upgrade package. The Texan copy of the LRS-2 ruby laser rangefinder uses a 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. Solid state electronic components allow the system to be fairly compact and robust. The rangefinder features a numerical readout in the gunner’s station. The rangefinder has a maximum operating range of 5km in clear conditions and has an average estimation error of 1%. 
 
The TBC-3A ballistic computer and IAPO-3 sight were not copied, as the high velocity of the APFSDS used in the 5”/55 cal main gun was felt to provide sufficient accuracy when paired with a good rangefinder.
 
Mobility

Transverse-mounted Kharkiv V-2-derived engine (specifically the V-55 diesel): 600HP/448kW, 2248lb/1020kg dry weight. The engine has been slightly re-bored to 40l, but is otherwise mechanically very similar to the engine used on the historical T-62. Hydraulic torque converter feeding into Merritt-Brown-style double differential system. An alternate engine layout would be two V-6 engines of similar total displacement, mounted normally, with a combined linkage to the torque converter. The engine, transmission and cooling system all sit in an aluminium tub that fits into a bay in the rear of the vehicle. This can be removed entirely for servicing, or to replace the powerpack with a different configuration. Suspension: 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). Fuel load: ~2400lb total (639lb/290kg in tanks flanking the driver, 1764lb/800kg in rear sponson tanks, range of 490mi at 30mph PWR: 13.8 HP/t (11.4 kW/mt) Ground pressure (calculated MMP): 29.4 PSI (203 KPa).  Track contact length: 153.5" (3.9m) Track contact area: 58.8ft2 (5.46m2) Nominal ground pressure (based on calculated weight): 10.3 PSI (70.77 KPa)  
Protection


Notes:
Composite liner (50:50 HHA/textolite): density of 4.825g/cm3, layers of 0.2, 0.4, 0.6, 0.8 or 1" depending, with thickness adjusted to prefer the thickest possible layers (1"/1") with a thinner backing layer. Mounting bolts for ERA layers are not modelled, but are accounted for. The covers over the rear fuel cells are 1" RHA.  
Turret front:
Two layers of L-ERA, sloped at 75’ Base armour: 1" (25mm) RHA sloped at 75’ 2.1" (55mm) composite (25mm HHA, 25mm textolite), sloped at 75’ KE: 16.9" (430mm) CE: 89" (2250mm) vs single-charge. Tandem charge rated to penetrate both layers via precursor is something like 17.9/11.4" (455/290mm), corresponding to 3"/3" high/low-precision charges and a 4" form factor.  
Turret cheeks:
 
Note: because of how the cheeks are sloped, protection actually drops off the closer you get to the 25’ arc.
 
Three layers of L-ERA sloped at 25’ in the horizontal Base armour: 1" (25mm RHA), sloped at 25’ in the horizontal 2.2" (55mm) composite, sloped at 25’ in the horizontal KE: 11.4" (290mm) from the front CE: 55" (1400mm) (normal) vs single charge. Tandem charge rated to penetrate both layers via precursor is something like 12.2/7.3" (310/185mm), corresponding to 2.1/2.4" (55/60mm) high/low-precision charges and a 3" form factor.  
Turret side armour array:
Two layers of L-ERA sloped at ~30’ in the horizontal Base armour: 1" (25mm) RHA, sloped at ~30’ in the horizontal 1" (25mm) composite, sloped at 30’ in the horizontal KE: 5.9" (150mm) at 30’ from side. CE: 13.4" (340mm) at 30' from side. Maximum angle that side can resist 7" CE is ~20' from the side (70' from the front).  
 
Turret rear:
2" (50mm) RHA  
Turret roof:
1" (25mm) RHA  
Hull upper front:
Two layers of L-ERA, sloped at 75’ Base armour: 1" (25mm) RHA sloped at 75’ 2.2" (55mm) composite, sloped at 75’ KE: 16.9" (430mm) CE: 89" (2250mm) vs single-charge. Tandem charge rated to penetrate both layers via precursor is something like 17.9/11.4" (455/290mm), corresponding to 3" high/low-precision charges and a 4" form factor.  
Hull lower front:
Base armour: 1" (25mm) RHA sloped at 45’ from vertical 4.2" (106mm) composite, sloped at 45’ from vertical KE: 7.3" (185mm) CE: 7.5" (190mm) vs single-charge. Notes: the area next to the driver contains two fuel cells and two protected storage areas for ammunition. Hits here are correspondingly much more protected than the above would indicate, for both the upper and lower hull.
 
Hull side:
2 x L-ERA layers Composite skirt: 0.2" (5mm) HHA with a 0.8" (20mm) textolite backing 1" (25mm) aluminium roadwheel (depending on hit location) 29.5" (750mm) air gap/fuel (depending on hit location) Inner skin: 1" (25mm) RHA KE: ~3" (75-80mm) (normal) / ~8.2" (190-225mm) (30’ arc from the front) CE: ~3.8" (95-100mm) (normal) / ~30" (690-860) (30’ arc from the front) Immunity zone against 15.7" KE: 21’ arc from front Immunity zone against 7" CE: 54’ from front (36' from the side)  
Notes: the upper hull side has numerous armoured brackets to hold the skirt. These would be expected to be hit when the impact is from the 30' arc, which would significantly improve protection.
 
Belly:
1" 25mm RHA 0-0.8" aluminium  
Notes: the suspension units are aluminium boxes, the torsion bars are modelled as 2.75" (70mm) bars and each swing arm is attached to a hollow steel tube. The mine protection for the floor of the vehicle is accordingly expected to be much higher than these figures would indicate.