Jump to content
Please support this forum by joining the SH Patreon ×
Sturgeon's House

Laviduce

Contributing Members
 View Profile  See their activity

  • Content Count

    201

  • Joined

  • Last visited

  • Days Won

    4

 Content Type 

Everything posted by Laviduce

  1. Laviduce
    So the Leclerc wont the South African competition ? How did it win it ? I never heard of that competition until now. Is there any more information floating around out there ?
  2. Laviduce
    A naked Rh-120 L44 maybe ?
  3. Laviduce
    AMX-56 .... AMX-56 !!!????
  4. Laviduce
    Here are also seems to be another view of an Abrams turret shell CAD model in the lower right corner of the image: It seems that certain Abrams tank test rigs such as the M1 Thumper used the original M1 turret as a base instead of creating a new turret from scratch.
  5. Laviduce
    Thanks for the feedback and additional information. I am trying to figure out what prototype could have been used in 1987. The earliest prototypes besides the 1986 Mulet Systeme Complete (MSC) was the Leclerc Ares prototype. The second prototype, Leclerc Bayard came into being in 1988. Frankly, the Ares prototype is the only Leclerc prototype I have never ever seen an image of in any publication or any other media. I have no idea how that thing looks like. Having said that, in 1987 the only vehicles available for an evaluation would have probably been the MSC (and maybe Ares). As
  6. Laviduce
    Here is another diagram to illustrate the idea of the 2 man flat turret design concept being able to use "denser" special armor arrays: Although the modules on both turrets have the same constructive depth, the flat turret design can get away with adding another 3 NERA plates in its special armor array without a volume (really mass) penalty. In this case the flat turret design is even slightly "lighter" (0,176 m3) than the full turret design ( 0,192 m3) while still theoretically improving the protection by 50%.
  7. Laviduce
    I was explaining the idea of a 2 man flat turret according to GIAT/Nexter. The illustrations show that heavier(denser) modules can be allocated towards the front of a turret without much or any additional weight penalty. In case of the 3 man turret i might only be able to insert 6 special armor plates where as in case of the 2 man flat turret i can insert another 2,4 for the same mass. I rather go with the 8.4 special armor plate design than with the 6 special armor plate design. These British snippets are indeed problematic because they contradict what has been reported
  8. Laviduce
    Very nice work!
  9. Laviduce
    Thank you for your reply. Here is my rebuttal: Lets focus on KE protection. The Leclerc Series 1 turret frontal arc protection is rated around 550 mm RHAe against KE projectiles. Where as the Leopard 2A4 equipped with C-Technology armor is rated at around 420 mm RHAe against KE projectiles. The Leopard 2A4 (C) front hull is rated around 400-450 mm RHAe against KE projectiles, where as the Leclerc's seems to be around 500 mm RHAe for the same threat. Sources: Lindström Presentation (Leclerc protection and Leo 2 protection) and declassified British Documents (Leo 2 protection).
  10. Laviduce
    The 60 degree frontal arc protection is not as consistent but directly from the front it has its advantages. Having a 2-crew autoloader flat turret design has the advantage that armor can be concentrated and protection improved by up to 74% compared to a 3 crew conventional turret of the same mass. That is what the South Koreans seem to have done. The French did it with the Leclerc to a slightly lesser extent. That also explains why the Leclerc has a similar mass to the Leopard 2A4 yet superior protection in terms of KE and CE resistance. This would also explain to some extent how a 55 ton veh
  11. Laviduce
    Interesting! Where was this taken ?
  12. Laviduce
    So E- technology armor packages are not meant to be armor inserts to replace the D-technology armor packages, they are meant just as add-on armor packages ?
  13. Laviduce
    Does anyone know when the "E-technology" armor packages were introduced to the Leopard 2 line ? I heard that that happened over 10 years ago.
  14. Laviduce
    Does anyone know what the distance was on these results again ? Thanks in advance !
  15. Laviduce
    FYI , concerning the NP 105 A2 round: "Land Forces of the World" (Christopher Chant, 1990, Crescent Books / Crown Publishers / Brian Todd Publishing House Ltd, ISBN 0-517-69128-0), on page 146 the book describes an NP 105 A2 tungsten APFSDS round with a complete weight of 19.3kg (mid-1980s Jane's A & A suggests a penetrator length of 980mm and penetrator weight of 3.7kg Tungalloy T176FA) and a muzzle velocity of 1485m / sec, giving 150mm @ 60degrees @ 5800m performance (almost 6 inches at just over 3 & 1/2 miles). And the glacis of that T-72M1 was able to stop this round
  16. Laviduce
    Yeah, i saw that. Wonder what the penetration figure would be for a 60 degree inclined standard RHA plate.
  17. Laviduce
    Yes, exactly. I might have jumped the gun by just looking at the numbers and not knowing anything about the testing conditions (e.g. range to target,etc.).
  18. Laviduce
    I was aware of that and did take into account. I was just surprised that the rated value against APFSDS threats and the given penetration value were off like that. Just like in the case of the Swedish tank trials I would expect to be given resistance figures or at least a certain range with a given margin of safety.
  19. Laviduce
    I read that the NP105A2 has the ability to penetrate 470 mm RHA at 1000 m. How was it not able to penetrate the glacis ? I thought the T-72A/M1 hulls had a KE resistance rating of around 400-420 mm RHAe not including weak zones. I would expect T-72B hulls to be this resistant but not T-72A/M1 hulls. Can someone explain this to me ?
  20. Laviduce
    So the Challenger 2 turret mass is around 18 metric tons ?
  21. Laviduce
    Thanks for the heads up !
  22. Laviduce
    In other news: "Marines to Shut Down All Tank Units, Cut Infantry Battalions in Major Overhaul" In the next decade, the Marine Corps will no longer operate tanks or have law enforcement battalions. It will also have three fewer infantry units and will shed about 7% of its overall force as the service prepares for a potential face-off with China. More here: https://www.military.com/daily-news/2020/03/23/marines-shut-down-all-tank-units-cut-infantry-battalions-major-overhaul.html?utm_medium=Social&utm_source=Twitter#Echobox=1584990680
  23. Laviduce
    Not sure if you all have seen this before. This is a chart that shows of the technical details of the BM Oplot tank and VT4 tank. Richard Gao over at the SinoDefense Forum was so kind enough to translate the original chart: I am not sure if about the protection values. According to the chart, the turret front and hull front of the Oplot are rated at: KE(3BM42/OFL120F1)>= 1100 mm** CE(<Kornet-E>) >= 1300 mm** As far as I know, the 3BM42 has the ability to penetrate roughly 500 mm of RHA (260 BHN?) at 2000 m. The OFL120F1 penetrates a
  24. Laviduce
  25. Laviduce
    From what document are these pictures from ? What year was this document created ? Thanks in advance !
×
×
  • Create New...