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StuG III Thread (and also other German vehicles I guess)


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I just really doubt that anything that would fit and properly function in a tank could get up to 1500 HP using 1940's technology.  The 1500 HP mark was not hit until the German MB-873 engine that was used in the KampPanzer 70 and Leopard II.  In it's original form, it had a displacement of  2429 cu in (39.8 L) while later it would be increased to 2907 cubic inches or 47.6 L. 

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I just really doubt that anything that would fit and properly function in a tank could get up to 1500 HP using 1940's technology.  The 1500 HP mark was not hit until the German MB-873 engine that was used in the KampPanzer 70 and Leopard II.  In it's original form, it had a displacement of  2429 cu in (39.8 L) while later it would be increased to 2907 cubic inches or 47.6 L. 

 

You could if you were willing to sacrifice engine life.  A few German aircraft engines could break 2000 HP with boost on, and basically everyone had 1500 HP in-line aircraft engines (save the Japanese who never developed their own in-line engines).  Given that Conqueror and Centurion were using essentially de-tuned merlins, and late model merlins were north of 2000 HP, I would think that you could get that sort of power out of something that would fit into a tank engine bay if you accepted aircraft engine maintenance schedules.  This would be a thoroughly bad idea, but technically feasible.

You might have to re-design the engine bay though.  The engine accommodations on the big cats were actually very small:

zq5ZNip.png

 

Edit:  DERP.  Just re-read Bronezhilet's translations.  Yes; fitting any of these diesels would have required re-designing the engine bay of the big cats.  Presumably the uprated fuel-injected petrol engines would have fit the original space provided.

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You could if you were willing to sacrifice engine life.  A few German aircraft engines could break 2000 HP with boost on, and basically everyone had 1500 HP in-line aircraft engines (save the Japanese who never developed their own in-line engines).  Given that Conqueror and Centurion were using essentially de-tuned merlins, and late model merlins were north of 2000 HP, I would think that you could get that sort of power out of something that would fit into a tank engine bay if you accepted aircraft engine maintenance schedules.  This would be a thoroughly bad idea, but technically feasible.

You might have to re-design the engine bay though.  The engine accommodations on the big cats were actually very small:

zq5ZNip.png

 

Edit:  DERP.  Just re-read Bronezhilet's translations.  Yes; fitting any of these diesels would have required re-designing the engine bay of the big cats.  Presumably the uprated fuel-injected petrol engines would have fit the original space provided.

You would also have to use aviation grade gasoline and figure out a way to get the same kind of cooling that you can on an aircraft.  

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You would also have to use aviation grade gasoline and figure out a way to get the same kind of cooling that you can on an aircraft.  

 

The panther already ran on leaded gasoline per the pantherfibel.  Cooling might be an issue, but a petrol engine in a tank normally devotes ~20% of its gross horsepower to cooling, and the radiators are gigantic.

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