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voodoo
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badger
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14.04.2004 19:29:15
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Re: Это глюки...
>Письмо конечно интересное, вот только наддув в 60 дюймов ртутного столба так и не был никогда на этих двигателях(а они применялись на P-40E,N,K) офицально разрешён Allison'ом, максимумом стало 56 дюймов с мощностью 1470 л.с. Причем произошло это самое ранее в 43, а отнюдь не в 42 .
http://base13.glasnet.ru/text/p39bakur/p39-1.htm
Почти те же самые 1600. Насколько я знаю, примерно то же самое было разрешено и на П-40К.
>До 115/145 эти двигатели не дожили.
1710 до 115/145 дожили ;).
"The most remarkable engine was probably the V-1710-E27 experimental turbo-compound engine. This unique engine was the first turbo-compound or "power-feedback" engine and was way ahead of its time. Based on an E-22 power section with auxiliary stage supercharger, it used a General Electric CT-1 power turbine which was adapted from the exhaust turbine of a CH-5 turbosupercharger. The turbine drove the crankshaft through a 5.953 reduction gear. The engine compression was reduced to 6.0:1 to facilitate high supercharger boost pressure of 100 in hg (35 psig). Using 115/145 PN fuel with ADI injection, this engine was able to develop 2,980 hp at 3,200 rpm and 100 in hg boost from sea level to 11,000 feet. In addition to the remarkable power output, the engine demonstrated a 19% improvement in specific fuel consumption during cruise. Had the inlet exhaust temperature not been limited to 1750° F, it is certain even more power could have been developed. The temperature proved to be easily exceeded during full-power operation, so the engine was never placed into service with the P-63 as intended."