In practice, however, Air Force One is used to refer to one of two highly customized Boeing 747-200B series aircraft, which carry the tail codes 28000 and 29000.
The process of dynamic changes of the side force of tail wheel has also been studied by means of this model and the optimum region of the horizontal linkage parameters is derived.
以此模型为基础，分析了尾轮侧向力的动态变化过程，并总结出了水平面内悬挂参数的优选域。
3
The tail reacts to that change of direction in the primary force (the ball moving), yet it is delayed due to the resistance of momentum.