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Could Sherman tanks still have some military use?


Proyas
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2 minutes ago, Collimatrix said:

 

 

The lower the pressure in the breech of the cannon, the less steel you need to keep the cannon from exploding.  Low-pressure guns are much lighter, but also lower-performing relative to their size.

Now do high-low, for completeness' sake ;)

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2 hours ago, Collimatrix said:

I suspect that most cannons that are advertised as "low pressure" are actually high-low systems.

Thats a rather suspect claim. The performance claimed for most loadings of these guns, for example:

http://s16.photobucket.com/user/hybenamon/media/LAND/ARMOR/Cockerill 90mm Cannon/CockerillSpecs.jpg.html

Indicate performance that would require a pretty full case of powder, just slow-burning.

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On 12/30/2018 at 5:11 AM, N-L-M said:

Thats a rather suspect claim. The performance claimed for most loadings of these guns, for example:

http://s16.photobucket.com/user/hybenamon/media/LAND/ARMOR/Cockerill 90mm Cannon/CockerillSpecs.jpg.html

Indicate performance that would require a pretty full case of powder, just slow-burning.

 

Complete speculation on my part.  However, a hi-lo gun does not necessarily need the expansion chamber to be located in each casing, that's just how 40mm does it.  It's entirely possible to have an oversize firing chamber.

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https://tieba.baidu.com/p/2377512442

Do you guys know Sherman M60? It's an Israeli-Chilean upgrade version, equipped with an OTO-IMI 60mm High Velocity Medium Support gun, or HVMS 60. 

This gun is capable for firing APFSDS and could penetrate 120mm/60° RHA at 2000m. 

Chilean Army also used these powerful guns to upgrade their M24s and M41s. 

 

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2 minutes ago, SPARTAN ARMED said:

Why they scrap the old tanks and didnt make robotic ! the chinese try on with t55 tanks.

Because when you make a robotic vehicle you do it for one of 2 main reasons:

1. As a technical demonstrator

2. As a useful vehicle

In the first case, using old tanks is silly because theyre crazy expensive to run. You can run a M113 or MT-LB if you want a tracked vehicle, or a fancy ATV if you don't, all of which are waaaay cheaper to run than a tank.

For the second case, you want a useful vehicle even in the face of enemy fire. If you don't want to stop enemy AT fire, your choices are the same as the above, plus the option of a purpose built compact vehicle. If you do want to stop enemy AT fire, the old tanks aren't up to it and need at the very least to be uparmored; and by being significantly larger than they need to be (as computers are smaller than crewmembers), this ends up being significantly larger heavier and more expensive when compared to a purpose-built vehicle.

 

In either case, the old tanks aren't really worth it.

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