据专家介绍,“神舟”五号在轨飞行14圈后开始返回,这时飞船开始在344公里高的轨道上制动。其实,就像刹车一样,先是飞船在轨道上呈90°转弯,然后轨道舱与返回舱分离,轨道舱继续在轨道上进行对地观测,而返回舱和推进舱再转90°,正好与原来的飞行方向相反喷气,起到减速的作用。这时返回舱开始脱离原来的轨道,进行无动力飞行。飞行至距地面 According to experts, “Shenzhou” started returning on the 5th after 14 orbits of the orbit, when the spacecraft began to brake on a track of 344 kilometers in height. Actually, just like the brakes, the spaceship first turned 90 ° on the orbit, and then the orbital and separation compartments were separated. The orbital capsule continued to observe the orbit on the orbit, while the return capsule and propulsion capsule rotated another 90 °, just as the original The opposite direction of flight jet, play a role in deceleration. At this moment, the return capsule began to depart from the original orbit to conduct unpowered flight. Fly to the ground