What is the relation between overturning couple and balancing couple for the stability of vehicle?

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asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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An aeroplane makes a complete half circle of 50 metres radius, towards left, when flying at 200 km per hr. The rotary engine and the propeller of the plane has a mass of 400 kg and a radius of gyration of 0.3 m. The engine rotates at 2400 r.p.m. clockwise when viewed from the rear. Find the gyroscopic couple on the aircraft.

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