Collimatrix Posted April 19, 2016 Author Report Share Posted April 19, 2016 OK, idiot question time. What is the distinction between NERA and NxRA? Quote Link to comment Share on other sites More sharing options...
Toxn Posted April 19, 2016 Report Share Posted April 19, 2016 OK, idiot question time. What is the distinction between NERA and NxRA? My idiot guess is that NxRA includes other elements (eg: the aramid capsule for the rubber) which pulls the operating principle away from pure NERA a bit. But that is, as I said, an idiot guess. Quote Link to comment Share on other sites More sharing options...
Militarysta Posted April 19, 2016 Report Share Posted April 19, 2016 OK, idiot question time. What is the distinction between NERA and NxRA? Simple answer: NERA - Non Energetic Reactive Armour (1) NxRA - Non Explosive Rective Armour (2) In (1) case you have layer which "transfer" energy from front plate to backplate -and this backplate is moving and damage SC jet or penetrator rod. Exmaple of sucht layer is rubber in T-72B armour or in Haji armour (T-55 ENIGMA). In NERA armour this layer is passive, not active - it only transfer energy between metal layers. In (2) case you have layer whit is non explosive but reactive - for example GAP mixed whit rubber or GAP+CACo. This layer is not explosive but it change its volume during transfering energy from first to second metal layer of whole "NxRA armour packed" -so BOTH thin metal paltes start to move and both metal plates are damaging SC jet or penetrator. And whole moving of this metal plates is mucht faster then in NERA armour - couse this "booster" form changing layer volume. Collimatrix 1 Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted May 25, 2016 Report Share Posted May 25, 2016 M1 hull front armor? Quote Link to comment Share on other sites More sharing options...
Bronezhilet Posted May 25, 2016 Report Share Posted May 25, 2016 Whatever it is, I like it. Quote Link to comment Share on other sites More sharing options...
Collimatrix Posted May 25, 2016 Author Report Share Posted May 25, 2016 Could you upload to imgur? File upload system on this forum does not work, and we need to disable it at some point. Quote Link to comment Share on other sites More sharing options...
Khand-e Posted May 25, 2016 Report Share Posted May 25, 2016 Whatever it is, I like it. You, stop liking things. Quote Link to comment Share on other sites More sharing options...
Khand-e Posted May 25, 2016 Report Share Posted May 25, 2016 Could you upload to imgur? File upload system on this forum does not work, and we need to disable it at some point. Expanded in size by 50% for clarity. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted May 25, 2016 Report Share Posted May 25, 2016 Whatever it is, I like it.I found it in Chinese forum and someone guests that it was from a patent doc,but I cant find any clue. Quote Link to comment Share on other sites More sharing options...
Khand-e Posted May 25, 2016 Report Share Posted May 25, 2016 Well it does fit the outer bare hull shape of the Abrams at the very least. Quote Link to comment Share on other sites More sharing options...
Militarysta Posted May 25, 2016 Report Share Posted May 25, 2016 M1 hull front armor? No, it's part of germant patent of the "special armour" for Leopard-2AV hull armour. It's slighty diffrent then Burlington armour themself, but it's NERA indeed. If You look close you will see that layout is exatly teh same as in polish smiple NERA from previous pages: 4 Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted May 25, 2016 Report Share Posted May 25, 2016 Yeah,it is.Well,I just know it is Leo 2AV right now,thanks. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted May 26, 2016 Report Share Posted May 26, 2016 @Militarysta Can you post this patent? Quote Link to comment Share on other sites More sharing options...
LoooSeR Posted May 27, 2016 Report Share Posted May 27, 2016 That schematics shows a hatch of some sorts on top of this armor module. So yeah, Leo2AV have it. Quote Link to comment Share on other sites More sharing options...
AutumnStorm Posted May 27, 2016 Report Share Posted May 27, 2016 Long time lurker, just wanted to thank you guys for this thread. Working on a self-designed MBT, and this was probably the easiest-to-find source for 'composite' armor construction. I honestly thought for a time that these tanks were just covered in these thick sandwiches of ceramics and metal. >_> Thanks a ton for the reference material. Belesarius and Mohamed A 2 Quote Link to comment Share on other sites More sharing options...
LostCosmonaut Posted May 28, 2016 Report Share Posted May 28, 2016 Welcome to SH Glad you found the thread to be useful. There's whole loads of other useful and interesting stuff stashed around here, be sure to check it out (the "greatest hits" threads are a good place to start). Quote Link to comment Share on other sites More sharing options...
AutumnStorm Posted May 28, 2016 Report Share Posted May 28, 2016 Welcome to SH Glad you found the thread to be useful. There's whole loads of other useful and interesting stuff stashed around here, be sure to check it out (the "greatest hits" threads are a good place to start). Oh yeah, I very quickly discovered the Soviet Tanks thread. Information on suspension and drivetrain pretty closely matched what I already had from Jane's ToT, with a few alterations once I took more modern systems into account. It was mostly the armor that wasn't making sense, though. The kg/m² of the arrays I had was way too high, and it showed with a projected weight of 80 tons. NERA makes much more sense given RL tank weights, also brings my design down to under 65 tons (haven't modeled and calculated all the replacement modules yet, so no exact numbers). On the subject of NERA, though, is there any real reason why the arrays are so different in design? Is one arrangement more capable of resisting certain types of penetrators than another? Quote Link to comment Share on other sites More sharing options...
Bronezhilet Posted May 28, 2016 Report Share Posted May 28, 2016 Oh yeah, I very quickly discovered the Soviet Tanks thread. Information on suspension and drivetrain pretty closely matched what I already had from Jane's ToT, with a few alterations once I took more modern systems into account. It was mostly the armor that wasn't making sense, though. The kg/m² of the arrays I had was way too high, and it showed with a projected weight of 80 tons. NERA makes much more sense given RL tank weights, also brings my design down to under 65 tons (haven't modeled and calculated all the replacement modules yet, so no exact numbers). On the subject of NERA, though, is there any real reason why the arrays are so different in design? Is one arrangement more capable of resisting certain types of penetrators than another? Welcome to SH! You've probably already seen this, but these topics might be interesting to read: http://sturgeonshouse.ipbhost.com/index.php?/topic/1085-design-contest-supplement-typical-weights-in-a-modern-tank/ http://sturgeonshouse.ipbhost.com/index.php?/topic/1080-competition-a-modern-medium-afv/ Quote Link to comment Share on other sites More sharing options...
AutumnStorm Posted May 28, 2016 Report Share Posted May 28, 2016 Welcome to SH! You've probably already seen this, but these topics might be interesting to read: http://sturgeonshouse.ipbhost.com/index.php?/topic/1085-design-contest-supplement-typical-weights-in-a-modern-tank/ http://sturgeonshouse.ipbhost.com/index.php?/topic/1080-competition-a-modern-medium-afv/ Whoa, thanks! I'm a little disappointed that I lurked so long I missed a design comp, but there's no way I could have gotten a full statblock + model done in that period. My MBT model's going on a year old, and I'm just now getting to detailing major parts. >_> (Is there a preferred thread for more off-topic/casual conversation like this? Feels spammy to be posting this stuff here.) Quote Link to comment Share on other sites More sharing options...
Militarysta Posted June 2, 2016 Report Share Posted June 2, 2016 Leopard-2AV NERA amrour model, made by otvaga forum user: Belesarius 1 Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted June 2, 2016 Report Share Posted June 2, 2016 How they get the thickness data? Belesarius 1 Quote Link to comment Share on other sites More sharing options...
Militarysta Posted June 2, 2016 Report Share Posted June 2, 2016 Good question. Quote Link to comment Share on other sites More sharing options...
Collimatrix Posted July 7, 2016 Author Report Share Posted July 7, 2016 Turkish Sabra hit with an ATGM. Quote Link to comment Share on other sites More sharing options...
SH_MM Posted October 28, 2016 Report Share Posted October 28, 2016 Chinese or Pakistani composite armor, image made by Militarysta Based on this image from brochure made by Heavy Industry Taxila (HIT): HIT produces the Al Khalid (VT1(A) tank) for Pakistan, but the CAD model at the left seems to be a Type 96A/B, Type 99G or MBT-3000 tank. HIT is trying to produced the MBT-3000 for the Pakistani Army as Al Hyder MBT... so maybe it's based on the MBT-3000. Collimatrix and Belesarius 2 Quote Link to comment Share on other sites More sharing options...
Militarysta Posted October 29, 2016 Report Share Posted October 29, 2016 And here older version, from Type.85-II and 85-III and very very erly Type-96: From here: And Type 85 erly armour: To be honest - I would like sitting in old T-72B (Ob.184) then in those chineese tanks above - those armour modules have huge weak zones couse it's NERA placment inside... As I understend - this was relesed to public in china so in Type-96A and newest tanks there must be completly diffrent armour configuration. Quote Link to comment Share on other sites More sharing options...
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