An aircraft running with a velocity of 320 km/hr makes a turn forming an arc of 90 m radius. The total mass of the propellers and turbine is 600 kg and the radius of gyration 30 cm. If the speed of the engine is 2200 rpm, then the gyroscopic couple generated on the aircraft in kNm is ________.
54.5 kNm
108.8 kNm
68.5 kNm
12.25 kNm
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