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Sturgeon's House

N-L-M

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Everything posted by N-L-M

  1. Encountered slight issues with using free internet 3d surface-based models in solid-based CAD, will require more work before I have something showable.
  2. Alrighty I have a fairly clear battle plan, I'll probably knock it out this weekend. I have... Several silly ideas and a few moderately sensible ones.
  3. Done some basic "what do" thinking. The problem, as posed, is extremely difficult to solve in a satisfactory manner, largely thanks to the (excellently picked) very poor selection of cast-off vehicles upon which to base designs. And when the reference point is a Sherman, even just a 75mm one, that's quite the tough nut to crack and quite a lot of gun to stop.
  4. https://www.opgal.com/products/lsa-kit/ Google image search is your friend. Please learn to post.
  5. In the Challenger 2, much like the Chieftain and Challenger 1, the ammo in the hull is stowed all over the place, but the 3 main bins of vertical propellant charges, if removed, provide adequate space for storing unitary ammo horizontally. Likewise, the frontal hull propellant racks, when removed, provide some more space there, though that likely requires rejiggering of the rest of the internal components there, as the unitary 120 is much longer. Perhaps that area wasn't touched, and the 15 are stowed horizontally where the 3 main bins were, nose to nose from 2 sides. Such an arrangement wou
  6. You appear to be using Google Translate very, very poorly. That combined with the subject matter of this thread is enough to make one very suspicious.
  7. You still have the dismount squad to help you out, and if you have the commander but count him as a dismount, well he's also available for maintenance and operating the vehicle when on board.
  8. Well, it's worth noting that a Stryker has a 2 man crew. Pretty sure the Dragoon likewise. Counting the commander as one of the dismounts is a thing you can do fairly easily with a remote turret, if you're willing to have the gunner step in as commander as well when the commander dismounts for an assault. Most tank operators' doctrine provide for fighting a tank undermanned in case of casualties, this wouldn't be too different. For maintenance of an IFV, you have the whole dismount squad to call on for help. Big question then is where is the commander more useful- staying inside
  9. From: Mahapya Smith, Chief Engineer, SCHV department To: Caliber Selection Committee, Rapid City Union Ammunition Plant Enclosed is the final TDP for the new proposed round, 0.22 Rapier. Following the Committee's advice, certain dimensions have been altered, to allow good growth margins, ease of manufacture, and low weight and cost, thus ensuring that this small but deadly bullet may best serve the needs of the scouts. Case head thicknesses have been reduced, as has case length, and the shoulder angle has increased to 25 degrees. Following extensive field trials (see enclosed re
  10. The SCHV shill department of Black Hills is proud to present the .22 Rapier! Featuring a .224, 83 grain copper-washed steel jacketed bullet, a steel case, and enough powder to sent said bullet downrange at above 2900 fps, this cartridge is the ideal choice for scouts. by the wisdom instilled from the studying of the works of the ancients, our chief Shaman was blessed with a revelation - once a bullet is in flight, it may not gain energy, only lose it. Therefore, it makes no sense to choose any bullet shape but that which experiences the least drag, and as such a boat tailed Von Ka
  11. Considering the base armor of the AMX-30, AP ammo could be side hits of 14.5 or 23mm. Against which any extra spaced steel, whether sandwiched with explosives or not, would be helpful.
  12. Considering how they were busy displacing Centurions and Pattons in service, where would they get all those hull parts from? It's not like they had several hundred merkava hull noses just lying around, or several hundred merk 2s to chop up. And that's if we assume the nose is 100% compatible, which it probably isn't. Why would one assume they're identical? The first roadwheel arm hub on the Merk 3 and 4 is right below the final drive base, which appears to be part of the hull nose, and therefore must come as part of the nose. Namer nose, but the point stands. On the Merk
  13. Simply not possible, the whole rear section of the hull is different, as are the hull sides. By the look of things, at some point in Merk 3 production they switched from the rounded, presumably cast hull nose to the sharp, presumably welded one. I don't recall seeing any pictures of Ramaqh Mk3 with a sharp hull but there are Baz Mk3s with either.
  14. The yellow paint on the turret side forwards of the hole shows signs of fragmentation damage typical of RPG-7 or other small HEAT warheads.
  15. I initially read that as 21 cm morser 16 and was kind of confused
  16. So, a bit older than most of the things in this thread, but @Sturgeon and I noticed something while crunching numbers for the current competition- If you take the 0 degree penetration of the 90mm HVAP and compare it to APDS, you get that it substantially over-performs according to the Demarre equation. Far beyond what you'd expect as reasonable error from Demarre. A possible explanation occurred to us- The HVAP has a heavy steel base, which on normal impact strikes the core from the rear like a hammer driving a nail, thus substantially raising its effective sectional energy. Th
  17. That kind of CE resistance is still enough to flat out stop the Mormon 2"/4" tandem warhead, if the armor is properly arranged. Very impressive beast.
  18. So I booted up the Norman model. Turns out that thanks to the needlenose shape and being specced for the wide frontal arc, from directly ahead the Norman's cheeks are hilariously thick: of course the center of the needlenose, where the mantlet is, is significantly more sane. cheek section at 30 degrees to the right Section at the mantlet. The Norman is a really tough nut.
  19. The Norman is basically covered by spaced armor all around, so HESH would be incredibly ineffective. Slinging HEAT from the same gun would however work.
  20. To defeat the Norman in the frontal arc you'd need around 300mm KE or around 400-450mm CE pen. This translates to around 115mm BM-6 and around 80mm LP HEAT or 100mm HP HEAT. At least as long as the Norman hasn't gotten its uparmor package yet...
  21. No, definitely a 1 or 2. The merkava 3, 4, and Namer have individual swing arms, the mounts for which are these large bases built into the hull side. The lack of such mounts means it must be a Merk 1 or 2, where the arms are attached to the bogies which are mounted to the hull. This is a Namer hull, but the idea is the same. There are a few pics of merkava 3s with the swing arm ripped off where you can see it more clearly but my Google fu is weak. In the pic posted earlier there's no sign of these swing arm hub bases.
  22. After review of firing trials, the Rangers approve cutting that spec significantly, to 1.6 lb or 26 oz HE fill, approximately the fill of a so called "75mm" 3 inch M48 HE shell of old. We apologize for the inconvenience.
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