Refer to figure.
The aircraft's weight is 1800 lb, and the centre of gravity is 33.3 inches aft of datum. What is the total moment, and in what category may the aircraft be flown?
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A
The total moment is 59.940 lb.in and the aircraft may be flown in the Utility category
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B
The total moment is 58.000 lb.in and the aircraft may be flown in the Normal category
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C
The total moment is 58.9 lb.in and the aircraft may be flown in the Normal category
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D
The total moment is 59.9 lb.in and the aircraft may be flown in the Utility category
Refer to figure.
CG position = Total Moments / Total Mass
- So, total moments = CG x Mass
- Moments = 33.3 x 1800 = 59 940 lb/in.
- Draw a horizontal line across the graph from the 1800 lb position
- Draw a vertical line up from the 59 940 lb/in position.
- Where the 2 lines intercept, this is the CG position.
The CG is inside the Utility trim envelope and the aircraft can fly...
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