140mm main gun for tanks?

[Slater]

If this actually results in a production contract, will the Abrams follow suit?


"Nexter has fit a 140 mm gun on a Leclerc main battle tank (MBT) to gather data for the Franco-German Main Ground Combat System (MGCS) programme to replace it and the Leopard 2, Jane's learned at the International Armoured Vehicles (IAV) 2019 conference held in London on 21-24 January.

This is understood to be the first time that a 140 mm gun has been successfully integrated onto a 50-tonne MBT and conducted over 200 firings. It is expected to provide a 70% increase in firepower over a NATO standard 120 mm gun."


https://www.janes.com/article/85934/...on-leclerc-mbt

[hotrodder636]

I am kind of surprised that going from 120mm to 140mm will give a 70% increase in firepower.

[kwelz]

I am kind of surprised that going from 120mm to 140mm will give a 70% increase in firepower.

It isn't just about the diameter. But I would like to know how they come up with that 70% number. Are we taking penetration? Is that for sloped or flat penetration. What kind of penetrator is being used? Tank firepower is not like small arms. There are complicated calculations I can't even start to do that figure how effective a round is. And it changes a lot based on the enemy armor type and configuration.

I actually tried to figure it out one time. And I quit pretty quickly.

[Business_Casual]

What tank war are they anticipating?

A drone with an EFP copper round could just fly over a tank and pop it like a balloon.

$5K for a for a drone vs $1M per tank...

[Whiskey_Bravo]

What tank war are they anticipating?

A drone with an EFP copper round could just fly over a tank and pop it like a balloon.

$5K for a for a drone vs $1M per tank...

If they only cost 1 million

[MountainRaven]

What tank war are they anticipating?

A drone with an EFP copper round could just fly over a tank and pop it like a balloon.

$5K for a for a drone vs $1M per tank...

I believe Russia has a tank destroyer with a 125mm gun. So I'd guess they're worried about the same tank war Russia is.

[Coal Dragger]

What tank war are they anticipating?

A drone with an EFP copper round could just fly over a tank and pop it like a balloon.

$5K for a for a drone vs $1M per tank...

You’re grossly underestimating the effectiveness of reactive armor against threats like a drone with a copper EFP pose.

[sgtrock82]

I believe Russia has a tank destroyer with a 125mm gun. So I'd guess they're worried about the same tank war Russia is.

Pretty sure the eastern block has been rocking a 125mm in their MBTs since the 1970s. When we had 105mms to edge past their 100mm, they brought out 110mm or 115mm and on and on. We've been 120 vs. 125 for over 30 years.

Im fairly suprised as well that we are back at playing this game again, I too thought Drones and infantry weapons like Javelin made all this rather passe'

Sent from my SM-J727T using Tapatalk

[hotrodder636]

I know it is not just diameter. My thoughts were related to still being an MBT round, which would have some level of size restraints and achieving that 70% number—and what that refers to; range, penetration, etc.

It isn't just about the diameter. But I would like to know how they come up with that 70% number. Are we taking penetration? Is that for sloped or flat penetration. What kind of penetrator is being used? Tank firepower is not like small arms. There are complicated calculations I can't even start to do that figure how effective a round is. And it changes a lot based on the enemy armor type and configuration.

I actually tried to figure it out one time. And I quit pretty quickly.

[Slater]

Pictures:

http://ftr.wot-news.com/2017/05/07/140mm-leclerc/