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Collimatrix

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Collimatrix last won the day on June 29

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  1.    Collimatrix reacted to a post in a topic: General AFV Thread
  2. Collimatrix
    I have read that Kornet does something similar to avoid the missile hitting obstacles on the way to the target.
  3.    Collimatrix reacted to a post in a topic: ATGMs and RPGs for infantry - a thread for rebels around the world to choose their ATGM supplier.
  4.    Collimatrix reacted to a post in a topic: Kimchi armoured vehicles: K1, K2, K21 and other AFVs from Worse Korea
  5.    Collimatrix reacted to a post in a topic: The Soviet Tank Thread: Transversely Mounted 1000hp Engines
  6.    Stimpy75 reacted to a post in a topic: Aerospace Documents Collection Point
  7.    Collimatrix reacted to a post in a topic: Kimchi armoured vehicles: K1, K2, K21 and other AFVs from Worse Korea
  8. Collimatrix
    Have you ever thought that the ideal shape for an anti-ship or anti-tank missile is a large, angry sphere? https://patentimages.storage.googleapis.com/f1/72/89/634aacb6736f87/US3045596.pdf Well, neither has anyone else since the 1950s. Enjoy this bizarre patent.
  9. Collimatrix
    https://www.youtube.com/watch?v=Pu48f7s5Ru8
  10.    Collimatrix reacted to a post in a topic: ATGMs and RPGs for infantry - a thread for rebels around the world to choose their ATGM supplier.
  11.    Collimatrix reacted to a post in a topic: ATGMs and RPGs for infantry - a thread for rebels around the world to choose their ATGM supplier.
  12.    Dragonstriker reacted to a post in a topic: SSN for Australia
  13. Collimatrix
    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?
  14. Collimatrix
    Clearance during powerpack removals may also be a factor.
  15.    Collimatrix reacted to a post in a topic: Britons are in trouble
  16.    Collimatrix reacted to a post in a topic: ATGMs and RPGs for infantry - a thread for rebels around the world to choose their ATGM supplier.
  17. Collimatrix
    Hi, welcome to SH AriesV. IIRC, the equations for estimating performance of long rods against homogeneous armor include a fractional exponent on the inverse cosine of the obliquity. Long rods normalize into sloped armor significantly, and you can actually see this in some test pictures: So I would expect a monolithic sloped armor to perform less efficiently than a flat one vs. APFSDS. A series of spaced, sloped plates might be a different story. As I understand it, it is very difficult to get APFSDS to ricochet. Exact angle at which ricochet occurs is a fairly complex question which involves the density and moment of inertia around the long axis of the penetrator as well as the hardness and probably elastic modulus of the armor, rather than just a fixed angle. As APFSDS penetrators have gotten ever greater aspect ratios and switched from steel to tungsten/uranium, it has become correspondingly harder to make them bounce.
  18. Collimatrix
    Tests of aluminum/steel composite plates by the US in the 1930s: https://apps.dtic.mil/sti/pdfs/ADA953774.pdf
  19. Collimatrix
    Interesting patent here for D-shaped ERA blocks from South Korea.
  20.    Beer reacted to a post in a topic: General cars and vehicles thread.
  21. Collimatrix
  22.    SuperComrade reacted to a post in a topic: Imperial Japanese Army Tank Nomenclature
  23. Collimatrix
    A quick search didn't turn anything up, so I apologize if this has already been asked before. Most sources credit the Leo 2's hull ammo rack with 27 rounds, in a hexagonally packed arrangement of two rows of six rounds and three rows of five rounds for five rows total. This is illustrated schematically: but actual photos show only 22 rounds, with four rows alternating six and five like so: What gives?
  24.    Dragonstriker reacted to a post in a topic: Bash the Pak-Fa thread
  25.    Dragonstriker reacted to a post in a topic: Bash the Pak-Fa thread
  26.    Dragonstriker reacted to a post in a topic: General AFV Thread
  27.    Dragonstriker reacted to a post in a topic: Trade-offs in WWII Fighter Design
  28.    Dragonstriker reacted to a post in a topic: Trade-offs in WWII Fighter Design
  29. Collimatrix
    What the fuck is this horrifying abomination?
  30.    watch_your_fire reacted to a post in a topic: J2M Raiden
  31. Collimatrix
    True!
  32. Collimatrix
    Does anyone have pictures of the MILAN's motor nozzle? @Alzoc?
  33. Collimatrix
  34. Collimatrix
    Were there ever problems with logistics because the tank MGs and infantry MGs didn't use the same belts?
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