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4 hours ago, alanch90 said:

explicitly claimed by the israeli armored corps in several official publications.

Thanks, do you have a link to those publications ?

Short video on the firing tests of ASCALON at the field firing range of Alcochete, Portugal :

On 6/12/2022 at 5:13 PM, Serge said:

An article about armoured design trend in French by Marc Chassillan. 
https://www.frstrategie.org/sites/default/files/documents/publications/defense-et-industries/2022/2.pdf

72 tonnes Merkava Mk. 4 ? 

First time I see this weight figure for the Mk. 4 (usually it's around 65 t).

11 hours ago, SH_MM said:

 

Not really good according to trials conducted in Sweden during the 1950s. The possible weight reduction was judged to be some 25%; up to 50% was achieved in tests with non-practical armor. So a lot of granite is needed to provide protection even against small shaped charges. The performance is worse than that of glass armor.

I've made an error of writing :

According to the ETCA (Etablissement Technique Central de l'armement d'Arcueil ; Central Technical Establishment of Weapons at Arcueil) Pyrex glass had good properties against shaped charge warheads while granite was effective against APFSDS.

9 hours ago, Newtonk said:

stone age ERA as seen in Ukraine recently.. external rock armour

FYI, granite has good properties against shaped charges.

14 hours ago, Marsh said:

The next link incorporates diagrams https://patentimages.storage.googleapis.com/94/0e/31/2c7f37e053a211/US7360479.pdf

Interesting, thanks

On 5/13/2022 at 12:33 PM, SH_MM said:

As far as I know this is Rheinmetall's 105 mm APFSDS design which was not adopted. The same might be true for the improved 105 mm HEAT-FS ammunition mentioned in the same brochure. A lot of other stuff advertised by Rheinmetall (Rheintech) to the US Army was experimental.

5 hours ago, Collimatrix said:

Ascalon seems terrible, WTF are they thinking?

Nexter is offering a 140 mm gun which is, obviously, more powerful than the current 120 mm ones while not having the drawbacks of the envisioned 130-140 mm tank guns, such as the recoil forces (thanks to its muzzle brake) and bulky ammunition (140 mm cased telescoped ammo will have a length equal to or less than 130 cm).

Those two characteristics allow ASCALON to be integrated on tracked vehicles weighing less than 50 t, thus more potential customers.

On 4/22/2022 at 12:00 AM, Serge said:

We are very strong in misunderstanding everything. 

Tropicalized/AZUR Leclerc ATO RWS sacrificed on the altar of the commonality.

The RARDE 110 mm (Short) gun, also known as the EXP-7 fired its APDS at a muzzle velocity of 1387 m/s with a velocity drop of 62 m/s at 1000 m.

At this range it was able to penetrate a 152 mm armor plate sloped at 60° and thus the NATO heavy single target.

For comparison, the L15A3 APDS fired from the larger L11 120 mm tank gun of the Chieftain main battle tank had a muzzle velocity of 1370 m/s with a velocity drop of 60 m/s at 914 m and was able to penetrate, at this range a 150 mm armor plate at 60° (likely the NATO heavy single target).

In spite of its slightly smaller calibre, the EXP-7 could penetrate as much, if not more, armor than the 120 mm L11 tank gun.

On 3/8/2022 at 7:42 AM, TokyoMorose said:

Come on Ram, the current Stryker DVH shares basically zero parts with Stryker as originally delivered. The suspension was modified several times and eventually outright replaced, the hull has been modified to the extent of very limited parts compatibility, the powerpack was entirely replaced...

 

The "regular" stryker to DVH conversion involves taking existing hulls, stripping them basically to the hull itself, modifying the hull to the new spec - and then bolting on the new 6.0 running gear, installing the new powerpack, and all that jazz.  If that's not a "redo" of the thing, than I don't know what is. Virtually nothing is left from the vehicle as originally ordered and designed.

 

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What's the fuel capacity of the Stryker DVH ?

Flat bottom Styker only had 200 L.

Those cupcake mold-shaped pieces are used to hold the explosive layers in place inside the bag.

Swiss 140 mm HEAT-MP-T :

Old picture of an AMX-10RC with the newer TML 105 turret fitted with the SAVAN 15 stabilized day/thermal sight and add-on armor :

12 hours ago, BaronTibere said:

Turret looks like the early Shir 2 type that was fitted to the Chieftain PIP

Looks more like the Chieftain 900 turret.

Royal Ordnance Factories's Chieftain 1000

It's somewhat reminiscent of the Chieftain 900. The displayed weight (52 t) seems a bit light for an upgraded Chieftain.

@Serge

A closer look to the Challenger 2 mantlet :

IIRC, this was related to the smoother shape of the turret (less protuberances) compared to the previous British MBTs.

On 3/9/2021 at 4:02 PM, Jackvony said:

New Nexter Munitions APFSDS called 120 SHARD. Maybe related to that round we saw with a datalink a few years ago?

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That was never intended to be a datalink, it's just a flexible primer.

On 3/24/2021 at 9:54 AM, Atokara said:

Even if France is experienced doesn't mean they are necessarily good at it. Just comparing the speed of the Type 90 and Leclerc you can already begin to see the flaws in the Leclerc system. Mainly how long it takes between the round being pushed into the breech and how long it takes the breech block to shut afterwards.

Leclerc's autoloader loading time was increased (reducing the rate of fire to 9-10 rounds per minute instead of 12) as the ammunition were too violently rammed into the chamber,  sometimes resulting in a rebound of the ammunition.

How reliable are the Type 90 and 10 autoloader ?

I wouldn't rely my reasoning on short videos. Does any official data exist regarding the performance of these devices ?

Quote

I had high hopes for the K2's autoloader, but it just seems to be a Leclerc autoloader with faster motors.

In any case, the South Korean delegation paid much attention to the Leclerc's autoloader during their visit at Eurosatory many years ago.

It's a rather peculiar layout, given the achieved protection level.

The side armor only relies and on a thin composite plate (KSAP), a stowage box and small Kontakt-1-like NERA bricks.

Does the threats hit the sides with a 60° obliquity (coming from the front) ?

Damn, this is entertaining.

12 hours ago, David Moyes said:

Indeed.
Although the lesson should've been learnt when CR1s had the same issues whilst mustering in Saudi Arabia. Vickers had to rush a team out to desertify them.

It's ironic knowing that the Challenger 1 was derived from a tank designed for operating in the desert.