模型飞机上安装的动力装置常用的有四种:橡筋束、活塞式发动机、电动机和喷气式发动机。我们首先介绍最简单的一种动力装置———橡筋束。一、橡筋动力简介模型飞机上使用的橡筋束,实际上是一种弹性储能装置,它能把旋绕橡筋获得的弹性势能储存起来。当释放弹性势能时,推动螺旋桨旋转,产生向前拉力,使模型飞机前进并获得升力。因此,橡筋束也叫做弹性储能式发动机。 Four types of power units are commonly used on model aircraft: tendons, piston engines, electric motors and jet engines. We first introduce the most simple kind of power plant --- Elastic tendons. First, the elastic rubber power Introduction The model aircraft used tendon beam, in fact, is an elastic energy storage device, which can be obtained by winding elastic elastic potential energy stored together. When the elastic potential energy is released, the propeller is propelled to rotate, producing a forward pull force that advances the model aircraft and gains lift. Therefore, the elastic beam is also called elastic energy storage engine.