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The object of this report was to determine the effect of fuel volatility on engine power and economy as influenced by mixture distribution. Although some variation of mixture distribution could be ...
The object of this report was to determine the effect of fuel volatility on engine power and economy as influenced by mixture distribution.
Although some variation of mixture distribution could be attributed to the different volatilities of the fuels tested, the effect of volatility on power and brake specific fuel consumption was small for the range of conditions tested. At conditions of normal-rated and take-off power, engine operation was noticeably rougher with the fuels that had 90-percent points of 295 degrees F (V-10) and 306 degrees F (V-7) than with the fuels that had 90-percent points of 255 degrees F (V-9) and 270 degrees F (AN-F-28).