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  1. Serge

    Italian’s car

    The Italian Armored Infantry Combat System from both Iveco and Oto-Melara.
    5 points
  2. T-72MP (for export, from late 90s) with 6TD-1 engine. T-72MP was joint French-Czech-Ukrainian project of T-72 modernisation, offered for export. First time it was shown in 1997 in Czech republic. Ukrainian ERA and engine, French optics and Czech company Bohemia was to put all that together. Equipped with SAVAN 15MP sight by SAGEM and the panoramic sight by another French company SFIM, 1000 hp engine, soft-kill APS Varta (Shtora, basically).
    5 points
  3. What the fuck do you think you're doing now? LMAO projection, much? With your shitty attitude? We mind mightily. You've been a banned man walking for months, now. It's funny that now you're professing your ignorance on virtually every subject from materials to engineering to what hole the square block goes into, but months ago you waltzed around chewing people out for how "ignorant" you thought they were because they didn't think Tiger was the best thing since sliced bread.
    2 points
  4. I thought you made it very clear you didn’t want to be here anymore, so why come back?
    2 points
  5. Stimpy75

    Turkish touch

    armor solution by Roketsan for M-60 and 120 mm Tanok guided tank round
    2 points
  6. Rare device to see on Russian AK-12s, which is supposed to be used as part of DNPK - 1K241 laser designator. Looks bulky.
    1 point
  7. Stolen from here. High capacity (60 round?) mag prototype developed probably for Abakan R&D, in collection of Kevin Gregory.
    1 point
  8. "Compensators for 5.6 mm catridge 13MZh (a,b) and for AKM" AKS-74U holster for pilots in Afghanistan. Gun was carried without a muzzle device.
    1 point
  9. 2805662

    SSN for Australia

    Worth understanding the basis of the US-UK nuclear technology sharing agreement from 1958: 1958 Mutual Agreement This more or less requires UK participation in any agreement by the US with a third party if it concerns nuclear submarine propulsion. Personally, I don’t see Astute or an Astute derivative in Australian service.
    1 point
  10. LoooSeR

    The Whirlybird Thread

    During exercises of the Western military District Mi-24P Mi-28s Mi-8 AMTSh
    1 point
  11. I don't see how this is a problem. What's the risk; that the Australians carve out the core of their own submarine to make a bomb?
    1 point
  12. It’s a bit grey since Øyvind Isachsen is not only the head of Kavalariklubben (The Cavalry Club), but also a senior advisor at First House who has been contracted by KMW to promote the Leo 2A7 in Norway. Thus the questions that needs to be answered are if the Kavaleriklubben members who created the website did so with KMW's approval, and from where they got the specs that are listed on it. There’s also the question of why KMW haven’t corrected this info now that they are supposedly in control of the website. Edit: According to the second in charge Jørgen Fodstad, the info came from KMW: "But it is KMW itself that has been responsible for the content on the Leopard page, he states" https://www.tu.no/artikler/lavmal-uten-like-kavaleriklubben-eide-skryteside-for-leopard-og-kritisk-side-for-black-panther/509639
    1 point
  13. North Korean 240 mm MRLS spotted in Angola I posted previously a link to an article about NK sales of their systems to different ME countries, even like UAE. Maybe they also did some sales to African countries during that time. UAE forces during exercises, same 240 mm caliber MRLS from NK.
    1 point
  14. Rico

    The Leopard 2 Thread

    There are a few things the Norwegians already use that are different to 2A7 right now regarding weight. I had a chance to see their WiSENT 2 AEV and saw that they use 571 instead of 570 track. This is 420 kg less. They use a Lithium battery pack instead of APU which is 120kg less. Side skirts are much lighter as well. So there are many ways to reduce weight.
    1 point
  15. More on the T-2000: https://asiapacificdefencereporter.com/eos-continues-to-build-sovereign-live-fire-test-capability/
    1 point
  16. N-L-M

    SSN for Australia

    I wish I was given 85 million pounds to think about boats.
    1 point
  17. 1 point
  18. Ow, hey, apparently Uran-9 is equipped with laser dazzler. Maybe small box above main optics assembly is emmiter of laser for this system? Not sure. It is small, so maybe it is just a rangefinder. Although maybe this is a device that was mentioned (box above ATGMs)
    1 point
  19. 1 point
  20. LoooSeR

    The Whirlybird Thread

    Mi-28NM with LMURs at Army 2021
    1 point
  21. 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.
    1 point
  22. Tracked Combat Vehicle 2247 (TCV-47) "Brahman" 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
    1 point
  23. 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.
    1 point
  24. 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
    1 point
  25. Main Battle Tank, 2247, project names "Derebus" and "Derebus-M" Manufacturer: 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: 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: See Appendix 3 Free expression zone: "...bellicis"
    1 point
  26. FINAL SUBMISSION: XG-48E3 Comanche Battle-cruiser 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. 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. 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: In loving memory of former Head Designer Juan Taylor: He's not dead, he's just really unhappy.
    1 point
  27. Video about ghillie suit in Russian, but footage is interesting - a minigame "guess where 3 snipers are"
    1 point
  28. Pluto has roughly the same surface area as Russia. Assuming that the American Minuteman III arsenal would be enough to "kill" something the size of Russia (Pluto has much less defenses than Russia, and their targets are probably less hardened against military attack), then we need 450 W87 warheads, which weigh about 250 kg each (I don't know the exact number). In other words, 112500 kg of warheads. The New Horizons probe weighed 478 kg and was launched on an Atlas V 551. 478 is pretty close to 250*2, so I'm going to say each Atlas V 551 can put two warheads on a Pluto intercept trajectory. This means we would need 225 Atlas Vs. 74 Atlas Vs have been launched since 2002, just over 4.5 per year. However, given sufficient incentives and/or money, I'm going to conservatively assume ULA could double the production rate, to 9 rockets a year. Therefore, using the Atlas V, there are 225/9 = 25 years until we have enough rockets to kill Pluto. Add in the 9.5 year transit time (from the New Horizons mission), and if we start today, we could cleanse Pluto of life by the year 2043. With other rockets, like Falcon Heavy, SLS, or BFR, it's probable that we could throw more warheads per launch and reduce the number of rockets needed. However, the production rates of these launch vehicles, as well as their performance on a trans-Plutonian trajectory, is unknown. If we decide to go with something like an Orion drive that could get to Pluto quicker (and drop sufficient warheads in one go), we need to factor in research+development time, and I am not an expert at those sorts of things. For a more extreme case, if we want to completely erase Pluto from existence, it will be harder. Pluto has a mass of 1.31*10^22 kg. To disperse this mass, I will assume we need to accelerate it to Pluto's escape velocity. From wiki, escape velocity is given by the following formula; (side note, I'm going to say r is the radius where half the volume of Pluto is outside that radius. This is (1/2)^(1/3) times Pluto's radius, which is .7397*1188 km = 878.8 km = 8.788*10^5 m). Solving for escape velocity, we find that the escape velocity is 1410 m/s. Therefore, the kinetic energy needed is .5 * 1.31*10^22 kg * (1410 m/s)^2 = 1.30*10^28 J. According to the Atomic Rockets page, the Sun puts out 3.9*10^26 J per second (watts). Therefore, we need to harness 33 seconds of the Sun's output and focus it simultaneously on Pluto. This is well beyond the technical capabilites of our civilization at the present time.
    1 point
  29. It is said that the man with no name wanders the desert wastes to this day, searching for his fistful of dollars.
    0 points
  30. same in higher quality, for those who can't understand how distinguish UD... PZU-7 sight mount headlight frame spurs for tracks mounting points https://www.sargs.lv/sites/default/files/2021-09/ts110582.jpg also some T-80UD used as hard target at Strugi Krasniye range
    0 points
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