


The 605,000-lb jet airliner has a touchdown velocity v = 141 mi/hr directed θ 0.670 below the hor...
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%