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US Army seeking a new light tank.   General Military Discussion

Started 19-Oct by Red7272; 3195 views.
Red7272

From: Red7272

19-Oct

This time it's 40 tonnes so it might even have an achievable set of criteria. Hard to see the point to something that heavy when they have 10,000 Abrams they can just refurbish and use. 

Might be worth stealing some ideas from the other side for a refurbished Abrams variant. Test the 50 mm chaingun and get a cheap fire support vehicle for a fraction of the cost of a new vehicle. 

https://defence-blog.com/news/army/u-s-army-seeks-a-new-light-tank-for-quickly-deployed-force.html?fbclid=IwAR3TbDvnpU8aeVZtPi-UCryCfKnSHW2eyDXUzRngSCYvB7R_wQvFv29FUcI

Farmplinker

From: Farmplinker

19-Oct

Part of the reason they're not going with a repurposed Abrams is to save weight. 40 tons can cross more bridges than  60 tons.

That said, a couple of variants might be useful. 50mm + Javelins or 120mm breechloader mortar versions could be useful.

Mr. T (MrT4)

From: Mr. T (MrT4)

19-Oct

40tons is in T64 tank territory so these days with 2 man crew and unmanned turret it should be a tank protected as well as M1 

Mockup of Object 490 2 man tank Is kinda configuration one would expect but more realistically in the West its going to be something built on an IFV or SPG hull  and drivetrain. Griffin or M8 are quite conservative designs

poliorcetes

From: poliorcetes

19-Oct

I assume that GD's bet is going to be ASCOD 2 base, uparmored and upengined. Something like an AJAX with a unmanned turret

In reply toRe: msg 4
taschoene

From: taschoene

19-Oct

GD's offering it indeed based on AJAX, plus a turret derived from the M1A2 (not unmanned).  THe chassis has seen a lot of revision, though -- new suspension, new engine, new cooling system, etc.  First pass seems to have actually been an M1A2 turret minus the heavy armor package plus some applique armor instead. Subsequent versions seem to have revised that a bit (aluminum turret with applique armor on top of that, slightly smaller than the M1).  But it still has essentially the same fire control system as the current M1AS SEP V3.  At one point, they were looking at a 120mm gun, but it looks like they stepped back to 105mm. The weight figures seem to be fairly close hold.  I've seen anywhere from 32 to 38 tons for the GD MPF (2 on a C-17). 

The BAE version is still basically a refreshed  XM-8, which means more like 25 tons (3 on a C-17) even with the Level III armor package.  

Red7272

From: Red7272

19-Oct

Without the turret the hull would be sub 40 tonnes I expect, tank out a road wheel and add a crew pod and RWS and 40 tonnes is quite practical. 

Farmplinker said:

120mm breechloader mortar versions could be useful.

Again with the BL mortar. It has no useful ammo types (HESH, HEAT, wallbreaching) and ammo handling is very manual, so no autoloader. The 105 mm is the only gun with that ammo still in production. 

Mr. T (MrT4) said:

40tons is in T64 tank territory so these days with 2 man crew and unmanned turret it should be a tank protected as well as M1 

Oh sure, but I'd still be more looking for a shortened hull Abrams with a crew pod and the armament in an RWS over a conventional 40 tonne tank.

I did some rough hacking up of a Abrams cutaway, and shortened by one roadwheel, there is room for a crew pod and about about a 1.5/1.7 metre turret ring. Probably need to increase the hull height to the engine deck for extra volume and mine protection. It would be a good time to go to hydrostatic suspension. 

1.5 metres is not going to work for a tank gun but for a 50 mm autocannon it should be practical. If they accept a limitation of plus/minus 140 degrees or so, very practical. 

  • Edited 19 October 2020 19:13  by  Red7272
Msg 7747.7 deleted
taschoene

From: taschoene

19-Oct

They have shown AJAX with a 50mm turret as Griffin III.  So you definitely could fit the MPF chassis with that turret to make a companion vehicle to operate alongside the tank gun version.

  • Edited 19 October 2020 19:37  by  taschoene
In reply toRe: msg 8
Refleks

From: Refleks

20-Oct

It's hard not to automatically think of this as just another program to turn taxpayer dollars into contractor profits, with fielding any results secondary.

If they wanted results in a timely, efficient and cost effective manner then CV90120 is available off the shelf at around 35 tons, and they still have the XM8/Thunderbolt gathering dust.

 

In reply toRe: msg 9
gatnerd

From: gatnerd

20-Oct

We're in a Cold War 2 naval, air, missile, cyber, and space arms race with China. Note the absence of anything to do with 'land' in that conflict/competition.

Yet, here we are, buying more Tanks... 

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