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Laviduce

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Laviduce last won the day on March 28

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About Laviduce

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  1. Laviduce

    The Leopard 2 Thread

    As far as i know, roughly: Orange: Should be 20-25 mm thick when the thickness is measure from the normal. Yellow: Seems to be 30 mm primarily. the forward section around the driver could be up to 50 mm thick. Light Orange: Heavy Side skirts are up to 110 mm thick. Side hull 30 mm, up to 50 mm potentially in certain areas. Magenta: Side skirts seem to be between 10-23 mm thick. Side hull seems mostly to be around 30 mm in this area. Purple: Outer side hull sponson seems to be 10 mm thick. Inner walls seem to be 10 mm thick in the forward section and 60 mm in the mid-section. Cyan: Outer side hull sponson also seems to be about 10 mm thick here. Inner side walls will also most likely be not much thicker. Fuel cells, NBC system, batteries are not included in this.
  2. Laviduce

    The Leopard 2 Thread

    According to Rolf Hilmes the aim of the LKE2/DM53 program was to create a KE shell that had the ability to pierce about 1000 mm of RHA using the L55. Rumor has i that it can penetrate over 900 mm RHA.
  3. Laviduce

    The Leopard 2 Thread

    I suggested that the average RHAe KE resistance could be around 380-400 mm including 400 mm. It is an after all an estimate.
  4. Laviduce

    The Leopard 2 Thread

    To clarify myself, as far as i know the overall mantlet/trunnion KE resistance of the Leopard 2 (B-tech level) is between 250 and 350 mm . That does not mean the mantlet/trunnion has a KE resistance of 350 mm overall necessarily.
  5. Laviduce

    The Leopard 2 Thread

    The barrel length of the L44 is given at 5280 , which works out with the rest of the drawings. Yet, there is a problem. The length of the gun assembly (muzzle to breech block mechanism end) is given at 5593. In my scaled drawings that length is about 5550 mm. Also, the ~300-350 mm RHAe against KE estimate includes the trunnion block. Using the approximate thickness efficiency of the turret faces i got an actual mantlet KE resistance range of around 180-220 mm RHAe.
  6. Laviduce

    The Leopard 2 Thread

    I am not totally sure why there is such a significant discrepancy (40-45 mm vs. 70mm). I made a serious effort to properly scale the drawings. Concerning the turret ring guard, it should make a small but at least somewhat noticeable difference. Also, has anyone figured out how and where the side turret special armor inserts terminate ?
  7. Laviduce

    The Leopard 2 Thread

    You are welcome. I am getting the impression that the area in question might have been thickened in parts in the Leopard 2A5 and later models. Three deflector plates in front of the loaders periscope are clearly visible.
  8. Laviduce

    Tank “document” misleading

    Do we get any information from the document about the actual Type 10 protection levels ?
  9. Laviduce

    The Leopard 2 Thread

    a) I think the boundary of the green/yellow line should be at the Peri R17 level. b) From a properly scaled Rolf Hilmes Leopard 2 cross section i get the following: green: 40-45 mm max. I seriously do not understand how they can get 70 mm unless they include the spall liner on later Leopard 2s orange: 15-20 mm. 20 mm was outlined in design change documents of the Leopard 2AV, IIRC. red: up to 40 mm yellow: 30 mm cyan: 10 mm ? Looks really thin, does not show up well in the drawing for measurement. yellow: 30 mm max. Also, the turret bustle bottom seems to be 20 mm thick.
  10. Laviduce

    The Leopard 2 Thread

    As far as i could see, the length of the upper part of the mantlet is about 510 mm, including the overhang. The maximum thickness from the front to the back seems to be 420 mm not including the overhang.
  11. Laviduce

    The Leopard 2 Thread

    Thank you for the feedback! What do you mean by this statement? It does not seem that i removed that much from my previous model. I just balanced the greater KE resistance to the other turret face given what we currently know , more or less.
  12. Laviduce

    The Leopard 2 Thread

    Something that should make us think:
  13. Laviduce

    The Leopard 2 Thread

    Diagram from an Aselsan research paper dealing with gun tube vibrations (https://www.sciencedirect.com/science/article/pii/S2214914716301234?via%3Dihub):
  14. Laviduce

    The Leopard 2 Thread

    My latest estimate. Oddly enough, according to the Lindstroem presentation on page 53, the right front of the Leopard 2 is better protected than the left. I incorporated this in this estimate. Any feedback would be appreciate. 
  15. Laviduce

    The Leopard 2 Thread

    Yes, i read about that too. Spielberger also talked about those D-technology based side skirts but i never had anyone go any deeper into the subject matter than Hilmes. Looking at the chart I also think it is possible that D technology Leopard 2A4 turrets were produced that early (1991-1992). On the other hand, this diagram could just have been part of the Krauss Maffei information brochures sent to Sweden after the request-for-information (RFI) was sent to Germany in November of 1991. Answers were received no later than March 1992. This image might actually show a projected introduction of the 3rd generation armor package in response to the future soviet tank (FST->T-90).
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