Firs. 9,10 N.A.C.A. Technical Memorandum No. 894 Figure 9.- Indicated horsepower per kg. air per second, a) as a function of the air excess ratio, h) as a function of the super- charge pressure at maximum power mixture (supercharge air temperature 20°, e » 6.5) 1.0 1200 1300 1400 hpi/ke.s-l 1500 … Compression ratio e
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