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Not too familiar with how you can extract an image URL from an Android browser. Maybe download the picture on your phone (temporarily) then reupload it on imgur or some other filehost then paste the new link here?

 

EDIT: in Chrome, long-press the image you want to repost, then "open image in new tab" then long-press the URL and "copy". Go back to SH, long-press the editor field then "paste".

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On 1/4/2019 at 9:02 PM, Gun Ready said:

Who told you that KMW is not developing its own special armour. This statement is pure speculation. Even if they are not doing high promotion (to whom should they do it unless to their potential customers) they have it in their companies slogan: "protects your mission". And believe me, the Leopard 2 A4M CAN protection comes solely from KMW and not any part at all was from your hotly favoured company IBD.

 

KMW has research different types of special armor for a while, but they have not developed their own solutions and never fielded anything, because that would require a lot of ressources that the company is not interested in investing. Given that Germany (and LEOBEN) are deciding what will be adopted to the Leopard 2, there wasn't much of a incentive to develop optional armor modules; before the Leopard 2 PSO, all Leopard 2 users just bought variants of the Leopard 2 developed for Germany and nobody bothered to purchase different armor kits. KMW seems to have(nearly) shut down all research at some point of time, resulting in a loss of experienced personnel. Dr. Gerd Keller, who funded GEKE Schutztechnik, worked for some time for Krauss-Maffei.

 

The Leopard 2 PSO armor package might be an own development by KMW, but I couldn't find any source to confirm this. It was developed as a private venture (thus Germany didn't dictate what parts to use), but at the first few times the Leopard 2 PSO prototype was showcased, the armor modules were just mock-ups.

 

KMW as a system integrator is not capable nor interested in developing every company on its own. Last year they invited more than 200 representatives from other companies (i.e. companies like Tencate, IBD, etc., which develop special armor) to discuss possible ways to reach STANAG 4569 level 6 armor protection and solutions against RPGs and IEDs.

 

I am not the one "hotly favouring" any company, you exclaimed that the fact that KMW would provide its own special armor modules to certain tanks, this would mean the end to armor modules from other manufacturers. That is however not true.

 

On 1/7/2019 at 5:14 PM, Gun Ready said:

This is Wisent 2 AEV Canada, protection designed by KMW.

 

Sorry, but this protection isn't really special armor. The modules are designed and made by KMW, but they are hollow and meant to be filled with Schüttgut (bulk material like sand or gravel). The corrugated exterior shape is the result of KMW trying to keep the steel shell as light-weight as possible, while providing enough structural strength to support the weight of the Schüttgut. KMW did not patent any sort of filling material and the design is optimized for low costs, so it seems to be just a fancy kind of modern sandbag armor (unless KMW buys filling material such as SAAB's soft armor from other companies).



0a471d581d26f127566c3d614b3b55e8.png

 

 

DE102016111285A1_0002.pngDE102016111285A1_0003.png

 

 

DE102016111285A1_0004.png

 

The whole armor design is explained in the patent DE102016111285A1 "Panzerungselement zur Anordnung an einem Fahrzeug". This armor isn't optimized for protection against shaped charges, but (EFP-)IEDs. For protection against kinetic energy (medium caliber rounds, artillery fragments), Denmark has chosen to adopt another armor layer made by Scanfiber Composites A/S.  Germany - demanding protection against RPGs - is using IBD Deisenroth's AMAP for the Bergepanzer 3 Büffel, while the AEV Dachs wasn't fitted with any add-on armor due to other vehicles being used in Afghanistan.

 

On 1/8/2019 at 12:10 PM, Gun Ready said:

Look to the front track skirts, they are not as with Leopard A7, they are more like Leopard A4M Canada, see pic above

3_popup.jpg

 

The Leopard 2A4M CAN uses the armor kit developed for the Leopard 2 PSO and also been offered for the Leopard 2A7. The original Panzerschnellbrücke 2 prototypes kept the original hull armor of the Leopard 2A4 with C-technology or with D-technology (depending on prototype), but to deal with the increased weight of the Leopard 2A7(V), the latest prototypes have been based on the Leopard 2A4M CAN hull. This variant has an upgraded suspension and thus can deal with a larger weight. The add-on armor is identical to the Leopard 2A4M CAN's, but the last skirt armor module was removed to save weight. The series production model might loose the add-on armor modules.

 

leopard_2a7.jpg

 

IMG_7602.jpg

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4 hours ago, SH_MM said:

 

Sorry, but this protection isn't really special armor. The modules are designed and made by KMW, but they are hollow and meant to be filled with Schüttgut (bulk material like sand or gravel). The corrugated exterior shape is the result of KMW trying to keep the steel shell as light-weight as possible, while providing enough structural strength to support the weight of the Schüttgut. KMW did not patent any sort of filling material and the design is optimized for low costs, so it seems to be just a fancy kind of modern sandbag armor (unless KMW buys filling material such as SAAB's soft armor from other companies).

 

  Reveal hidden contents

 

 


0a471d581d26f127566c3d614b3b55e8.png

 

 

DE102016111285A1_0002.pngDE102016111285A1_0003.png

 

 

DE102016111285A1_0004.png
 

 

 

 

Wouldn’t blocks of NERA or ERA be more effective (protection and weight wise) against fragments and ieds than a “metal sand bag”? I don’t believe either are very expensive, if cost is the issue, so why would they choose this armor over others? 

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On 1/27/2019 at 6:32 PM, Lord_James said:

Wouldn’t blocks of NERA or ERA be more effective (protection and weight wise) against fragments and ieds than a “metal sand bag”? I don’t believe either are very expensive, if cost is the issue, so why would they choose this armor over others? 

 

Lightweight ERA and NERA solutions are not providing high levels of protection against kinetic energy threats such as EFPs and artillery fragments. If the flyer plates are not thick enough to break the penetrator (or change its form/flight path), the protection is more comparable to spaced steel plates. The armor design from KMW provides cheaper protection against the threats and is flexible (armor boxes can be filled in theater (with dust/sand/dirt/gravel) and the internal filling material can be changed to meet different protection levels).

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I don't believe that KMW is really using "Schüttgut" like @SH_MM assumes. I think they are using classical NERA protection design against RPGs. This is also good against blast IED, EFPs and art frags as far as I learned. So I state that they are using the same tech as IBD but in there own design and own manufactured.

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This is not an assumption by me, but mentioned in the patent by KMW. Each individual armor element has an opening (covered by a plug) on the top, which is used to fill them with Schüttgut (via gravity). This plug is visible on the Wisent 2 aswell. Aside of that, the shape of the armor element is optimized for being filled with Schüttgut rather than NERA; if it would be NERA, why not reuse the same falt-sided NERA modules as fitted to the Leopard 2A4M CAN?

 

QgYmEqt.jpgDE102016111285A1_0002.png

Hole and plug for filling the armor boxes, labeled with the number 8.1 in the patent.

 

Light-weight NERA by itself provides poor protection against KE projectiles such as AP(DSFS) munitions and EFPs. That's why modern vehicles usually use a combination of light-weight NERA and passive armor (ceramics, spaced steel plates, etc.). Diehl designed a type of anti-EFP armor consisting of hollow steel bars meant to shatter the brittle EFPs. For additional protection against EFPs, NERA sandwich plates (labeled 11 in the patent drawings) could be added inbetween the hollow spaces:

pcrTxS5.pngT2bH4vT.png

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