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Which factor must be reduced in cruise method 3?(a) Mach number(b) Angle of attack(c) Altitude(d) TemperatureI had been asked this question in class test.The above asked question is from Cruise Method 3 topic in portion Cruising Performance of Aircraft Performance

Answer»

Correct OPTION is (b) Angle of attack

Explanation: The factor that MUST be reduced in cruise method 3 (ALSO known as constant mach number and constant altitude method) is angle of attack. Also the RATIO of weight to lift coefficient and RELATIVE airspeed are kept constant i.e. W/CL ratio and u are constant throughout the method.



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