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Re: Focke-Wulf Fw 190A poor high-altitude performance
Kenneth, one needs exotic metals in turbo superchargers because of the hot exhaust gases used to spin the turbine wheel. Mechanical superchargers sucked in 'cold' air. Even in the 2 stage superchargers, the air from the first stage was not that 'hot'.
The Jumo 004A used exotic metals but the Jumo 004B did not, which reduced its TBO from 100 hrs, in the 004A, to 25hrs.
MW-50 was used below the engine's FTH and GM-1 was used above the engine's FTH.
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