Introduction to Flight 7th Edition by John Anderson

تمرين 1

A reciprocating engine for light aircraft, modeled after the Avco L ycoming O-235 engine, has the following characteristics: bore =11.1 cm, stroke = 9.84 cm. number of pistons = 4, compression ratio = 6.75, mechanical efficiency = 0.83. It is connected to a propeller with an efficiency of 0.85. If the fuel-to-air ratio is 0.06 and the pressure and temperature in the intake manifold are 1 atm and 285 K, respectively, calculate the power available from the engine-propeller combination at 2800 rpm.