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Showing content with the highest reputation since 03/14/2021 in Posts

  1. It's rarely pointed out because it is an absolute load of bullshit, and most self respecting people have enough of a brain to not embarrass themselves in public by making such inherently absurd claims. Clearly you either have no brain or no sense of self worth if you are willing to put your name behind such an incredibly stupid line of thought. Let us take, as a starting date, the year 1943, as that is nicely mid-war. At that point in the war, the Western Allies were largely engaged in the Tunisian campaign, where other than defensive actions the entire battle of the Mareth line was decid
    10 points
  2. Object 219M with Burlak turret, without APS
    9 points
  3. Posted on otvaga, found docs about Armata soft-kill APS. System type is reffered as SPN (anti-targeting system). Kit have 4 integrated sensors (multispectral) of working rocket engines and laser illumination detectors. 4 detectors combined create full coverage of upper hemisphere of vehicle. SPN was designed to not give away vehicle when it was turned on and working, so it uses only passive sensors. On scheme 1 is detectors, 2 are PPU (rotatable launchers) and 3 are 2 vertically aimed PUs (stationary launcher).
    9 points
  4. Already before WW2 Czechoslovak industry rutinely produced heavy extremely thick armoured cast pieces, especially observation cupolas and firing posts for the fortifications. To my knowledge at least three companies were supplying them in hundreds (Steel works in Vítkovice, Třinec and Škoda in Plzeň). They had a lot of experience from working on armoured parts for Austro-Hungarian fortresses and navy (basically all heavy machinery of A-H Empire was enherited by Czechoslovakia). The mass-produced armoured cupolas for Czechoslovak interwar fortiffication had 150-300 mm thickness (pe
    7 points
  5. Just a gif ofT-14 firing and ejecting spent case, stolen from otvaga
    6 points
  6. ROKMC M48A3Ks of the 2nd Marine Division on maneuvers sometime recently in 2021 according to the title of the video.
    6 points
  7. 6 points
  8. More info on DM73, KE2020Neo, Rh130mm and MGCS. - Super confirmed that DM73 is the same good old DM53/63 projectile and sabot but with more powerful propellant. Existing DM63 rounds can be upgraded to DM73. 8 Percent performance improvement over DM63. - KE2020Neo will get a new "DM" designation in 2-3 years, mass production expected for 2025. Entirely new design both for projectile and sabot. Design is not yet finalized. - There is not enough info currently to simulate T-14 armor for trials and experiments with the new ammo. - Rh130 has 50 percent more chamber volume than 120mm, an
    5 points
  9. Beer

    The MiG-23 Thread

    It makes no sense to compare MiG-23 with MiG-25. Those are planes of different category used for different tasks. MiG-23 replaced MiG-21 and it was much better than MiG-21 in everything with the exception of the initial MiG-23S batch with RP-22 radar and armamament from MiG-21 (and the cost) and the Arabic "monkey" export model MiG-23MS which had the RP-21 radar and armament from MiG-21. Also the other comparisons are strange... GSh-23L has muzzle velocity 715 m/s and it's much more interesting feature is its operating principle since it is one of the only two operationally used G
    5 points
  10. 2805662

    Britons are in trouble

    Apparently the Challenger 2 LEP contract has been signed.
    5 points
  11. Beer

    Scale Models Megathread

    Not being a pro at all, just building some paper stuff for fun from time to time. Here a couple of 1:35 (T-30 and LT vz.38) and a couple of 1:50 (T-50 and P-26/40).
    4 points
  12. Idk about IJA, but the practice has become a lot more common with the JGSDF. TKG is the most common way to refer the main cannon of armored vehicles. Basically TanK Gun. Usually it's just the XXmmTKG, but I've also seen the Type 10 cannon called 10TKG to differentiate it from the 120mmTKG of the Type 90. AFV's themselves on the otherhand really only receive this style of abbreviation from the Ministry of Defense rather than the JGSDF. ie: 90TK, 74TK, 89FV, 11CVR, 16MCV. https://www.mod.go.jp/gsdf/equipment/ve/index.html This nomenclature is frequently
    4 points
  13. https://helda.helsinki.fi/bitstream/handle/1975/8020/ECO031.pdf;jsessionid=1D4F492F19FEAAE2F3ECAA7A5A2BEF66?sequence=3 A paper outlining a bunch of methods for calculating tire/track pressure on soil. This includes the original MMP formulas.
    4 points
  14. Oh this whole thing has been just delightful. Let's do a quick mid-season recap, shall we? It started with Beer making an observation (which he's actually rather well qualified to support, not that you'd know because you don't actually pay any attention at all to who you're talking to), and you claimed his observation was conjecture, and packaged this with an amusingly ignorant oversight (which any eleven year old tank game enthusiast would know, let alone someone who preens and struts about as if he were a german tank expert) about the Pz.38(t) n.A. Specifically, you didn't know it existed
    4 points
  15. Great update courtesy of DTR: https://defencetechnologyreview.partica.online/defence-technology-review/dtr-apr-2021/flipbook/11/
    4 points
  16. I just find it very amusing that MAN was able to submit a vehicle that did not meet the hard requirements (the 5cm gun), and still managed to win. That is some grade A favoritism.
    4 points
  17. https://www.army.mil/article/244447
    4 points
  18. US Army nears choosing first battalion for ERCA https://www.defensenews.com/digital-show-dailies/global-force-symposium/2021/03/18/us-army-nears-choosing-first-battalion-for-extended-range-cannon/?utm_source=twitter.com&utm_campaign=Socialflow+DFN&utm_medium=social
    4 points
  19. K1A2s, K30s, and K200s of the 30th Armored Brigade training at the Seungjin firing range on the 8th of this month.
    3 points
  20. Cockerill themselves don't make ammunition, Mecar (now part of the Nexter group) does, but the Nexter ammunition catalog does not contain any 90mm for the M3 family. It does, however, contain many ammo types for various Cockerill 90mm guns, including the spicier ones, and presumably transplanting those projectiles (perhaps with driving and obturating band modifications) onto the correct case would not be a hassle. Incidentally, the Nexter catalog lists penetration for the M690A1 APFSDS for the high pressure Cockerill 90mm mk 8 as a NATO single heavy (150mm at 60) at 2000m. Reg
    3 points
  21. Since we got to the topic of the fortiffication cast elements in another topic I'm giving here what thickness of what in which resistance class was used and what those were supposed to withstand (by mid 1930' technology). I'm listing only what could be hit from enemy side. As mentioned elsewhere the known requirement for the steel was 550-700 MPa tensile stregth and ductility 14-17%. Per recent analysis of one cupola the hardness was 177 HV 30, i.e. 169 HB. The required compressive strength of the concrete was 450 kg/cm2, i.e. 44 MPa. Early object had less, some only around 30 MPa
    3 points
  22. Yeah a lack of Mo, Ni, and B limit the hardenability of the steel, particularly at the core. Good quantity of Mn, which means impact properties should be good. More phosphorus and sulfur than would normally be recommended, but the Mn should help with that. The Al is presumably left over from deoxidation. A hardness of 169 BHN corresponds to around 570 MPa yield, which is indeed fairly soft and weak for armor steel, but that's somewhat typical for fortifications where weight was less of an issue than the ability to take multiple repeated hits.
    3 points
  23. Laser Shark

    The Leopard 2 Thread

    KMW has established a new website to promote the Leopard 2A7NO for Norway.
    3 points
  24. A patent that looks like it might be for the SU-57 air intake: https://patents.google.com/patent/RU2460892C1/ru Very interesting shock wave geometry.
    3 points
  25. You categorically do not understand what you're talking about. That's not the theory at all. I'm slightly curious if you read this nonsense somewhere or came up with it on your own, but only slightly curious, so please don't belabor me with a large amount of detail. Having more points of articulation on a suspension does not affect the force experienced by the chassis or crew. When the tank is at rest the road wheels will exert the tank's weight against the ground via the suspension springs. When the tank is going over an obstacle, the vertical component of the acceleration
    3 points
  26. HJ-16, claimed specs: -8-10 km range -entire system (launcher, missile, control unit) weighting 28kg together. -dual mode guidance/launch modes: fire and forget, wireless datalink control, i.e. operator can steer the missile after launch, which enables it to be used as a suicide drone and attack targets hidden behind cover -top-attack, impact at a 55 degree angle
    3 points
  27. 3 points
  28. LoooSeR

    Bash the F-35 thred.

    JSM prototype in F-35A
    3 points
  29. LoooSeR

    Israeli AFVs

    Namer with unmanned turret, possibly during testing in army unit.
    3 points
  30. Photos from my yesterday visit to St.Petersburg museum of artillery. LAD MG chambered in pistol caliber (7.62x25) 3 guns on this side of display and one on the bipod are: Simonov's 7.62mm avtomat №3 Tokaerv's 7.62mm avtomat №1 Degtyarov's 7.62mm avtomat №1 Degtyarov's 7.62mm avtomat №2 On the other side of display: 3 guns are: Korobov's 7.62mm TKB-315 №1 Korobov's 7.62mm TKB-315 №3 Sudaev's 7.62mm avtomat 7 guns on display are: Kuzmischev's 7.62mm avto
    3 points
  31. @N-L-M People on otvaga found this: https://www.elibrary.ru/item.asp?id=43963956&pff=1 ("Article in the proceedings of the conference, Year of publication: 2020" so it appears to be fresh-ish) So names to look for are Baikal and Effect. Helicopter complex is possibly LMUR/Izdelie 305. and this slide about ways of improvement of AT weapons, it adds to whole picture: Right column speaks about creation of unified all-weather, day and night ATGM systems using F&F named "Baikal" on regiment level and company/battalion level named "Ef
    3 points
  32. K30 Biho and the K808 SPAAG at the Hanwha Defense Plant No. 2 in Changwon.
    3 points
  33. https://insidedefense.com/insider/bae-delivers-first-mpf-prototype
    2 points
  34. T-90A protection KE 715-725mm, CE 1100mm
    2 points
  35. Uparmored KM450s apart of the Zaytun Division during their tours in Iraq (as well as one image from a defense expo in Korea by the looks of it)
    2 points
  36. Apparently the British goofed around with interleaved road wheels, albeit because they cloned captured German half-tracks.
    2 points
  37. Holy fuck this guy is short bus level retarded
    2 points
  38. 2 points
  39. Sorry but you shall educate yourself a little bit because Pz.38(t) n.A. is different vehicle than Pz.38(t) just like Luchs is not the same vehicle as usual Pz.II. The "Neue Art" Pz.38(t) is what later became the chassis for Jagdpanzer 38(t). Even the chassis is not completely same as of Pz.38(t) albeit it looks same. The "Neue Art" had much larger and twice stronger engine (from V-8-H aka ST vz.39 medium tank) than the original Pz.38(t) while having only some 1,7-1,8 t more. It reached up to 75 km/h during testing in Kummersdorf. The power to weight ratio was 21,1 Hp/t while Luchs had only 15,
    2 points
  40. Photos from my trip to Krasnodar region to father's relatives in late December 2020/early January 2021. Later will post more, from different locations i visited there. Pulkovo airport. Our plane was scheduled for night take off, airport was nearly empty. Destnation of first flight was to Moscow, where we (father, sister, me) would change planes to one to Krasnodar city. Novokubanks. Small town near Armavir. Basically a no-name town somewhere in Southern part of Russia.
    2 points
  41. kinda comparsion of 3 photogrammetry scans... size can be a little off, but not much
    2 points
  42. The Requirement is six and always has been, 8 and even 9 is occasionally stated by the Primes. Utter bullshit. No matter how many bodies, you must carry their gear. 6 plus gear is a challenge for both teams. 8 is simply not possible.
    2 points
  43. Few more shots from the autumn trips with a new phone. The so-called Mácha lake and the countyside of the Česká tabule vulcanic hills in the northern Bohemia. Bezděz castle can be seen on the very right, Ralsko vulcanic mountain with another (small) castle ruin on the top is on the very left. In between there is Ještěd mountain barely visible on the horizont. The land of castles. The view is taken from the ruins of a small Oltářík castle towards the magnifficent Házmburk castle (the two towers on the right) and on the left there is another castle ruin called Košťá
    2 points
  44. 2 points
  45. Boagrius

    Bash the F-35 thred.

    Another one from F35 pilot, Hasard Lee:
    2 points
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