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T99 Heavy Tank


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DeadArashi #1 Posted 22 September 2017 - 08:30 AM

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Today I want to talk about this tank the T99 and the question is inevitably going to be asked... what is it? Well, according to wiki (which sites Patton: A History of the American Main Battle Tank by Hunnicutt as the source):

 

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The Heavy Tank T99 was an American heavy tank project starting in April 1957 to counter the threat of new Soviet armored vehicles. The M46 Patton was not considered heavily enough armed or armored to counter the T-54/55. Though the T99 never saw service, it did provide post-war engineers with opportunities for testing new engineering methods.

 

The T99 was based on a lenghened version of the T29 Heavy Tank and featured heavier armor, an upgraded Continental twin-turbo gasoline engine providing about 1100 bhp gross, 1000 bhp net, more comfortable possitions for the crew and a massive new turret incorporating a high-velocity Royal Ordinance L11A5 120mm gun.

 

That's all we have to go on. There's no other mentions of it, no designs or pictures or other stats. What is there is what we have, so let's break it down:

 

  • T29 existed and was canceled in 1945 with the T30 in 1947, 10 years before the T99
  • The engine would most likely have been the Continental AVDS-1790-5B as it was the only twin turbo Continental that was used in tanks at the time, but that only produced 810hp gross and 650 net
  • The 120mm L11 guns were designed in 1957, so it's more then likely just the L11A1

 

So two of the three facts check out unless I missed a possible engine. WG don't really care for the difference between gross or net, just which ever works best for them. So what about this "massive new turret"? My heavy tank standards the T29 turret is already rather big so what could fit here? Well, a tank that entered service in 1957 for America was the M103 that we know mounts a 120mm gun. The turret is longer while also the similar width and height as the T29 so it can be classed as being "bigger" and it's also new at the time.

 

It also stats that it featured heavier armor to the T29 so frontally the armor would be increased from 102mm to really anything reasonable.

 

So here's what we have from some theory crafting:

 

Gun: L11A1 120mm

Weight: 68-70 t (depending on how long the hull was to be made and how thick the armor thickened to

Engine: 650hp (historical power), 810hp or 1,000hp

HP/T: 9.28 to 9.55 - 11.57 to 11.91 - 14.28 to 14.7 (depending on engine power and weight)

 

So is it real? I'm going to say probably not. I don't have Hunnicutt's Patton book so I can't verify the source. But to me it sounds like an educated "what if tank" but that doesn't stop the possibility of it being real

 



Gani_GANz #2 Posted 22 September 2017 - 09:11 AM

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a mystery arises... 

 

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The T99 was based on a lengthened version of the T29 Heavy Tank

 

the mystery is located there. by "based on lengthened T29" could mean there's additional pair of roadwheels or the gap between roadwheels became wider. hasn't confirmed yet.


Edited by Gani_GANz, 22 September 2017 - 09:12 AM.

3 Marks : T29, T-34

2 Marks : T34, Comet, T-54, STA-1, VK100.01P

 


DeadArashi #3 Posted 22 September 2017 - 09:32 AM

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It would come down to the load limit of the suspension. If the current set up can handle the increased weight then a wider gap between the road wheels would br the more likely scenario.

 

If the weight is too great then more road wheels/suspension may be required to help handle the weight. Alternatively a different suspension can be used that can handle the weight.

 

Honestly I'm not sure which configuration they would have used for it






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