美国海军陆战队有一支用直升机加绳索装备起来的部队。该部队执行任务时,其直升机总是用一根绳索把作战人员“成串”地悬吊在空中。这是一支什么部队呢? 山谷里,一些身穿迷彩服的士兵被悬吊在直升机下面的一根绳子上,好象不是空降兵在练习着陆,也不象是消防队员在进行救火训练,那他们是在干什么呢? 原来,这是美国海军陆战队的一支新的特种直升机部队正在进行一种称为“特种巡逻进退吊索”(SPIE Rigging)的任务训练。 The U.S. Marines have a unit that is equipped with helicopters and ropes. In the course of its mission, the helicopter used its ropes to “hang” the warfighters in the air. What is this force? In the valley, some soldiers dressed in camouflage uniforms are suspended on a rope under the helicopter as if they were not parachuted in practice, nor are firefighters carrying out fire-fighting training, So what are they doing? Originally, this was a mission being conducted by a new special helicopter unit of the U.S. Marine Corps called “SPIE Rigging.”