Question

The 664,000 lb et airliner has a touchdown velocity V-105 mi hr directed θ-0.69" below the horizontal. The touchdown process of the eight main wheels takes 0.57 sec to complete. Treat the aircraft as a particle and struts compress, etc. Assume that the aircraft lift equals the aircraft weight during the touchdown. e the average normal reaction force at each wheel during this 0.57-sec process, during which tires deflect 100000 nD lb the tolerance is +/-2%

Answer 1

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