乘波体（waverider） 是一种高超音速飞机的设计，提高其超音速升阻比，其用自己的飞行产生一个升力面的冲击波。

A WaveRider is a hypersonic aircraft design that improves its supersonic lift-to-drag ratio by using the shock waves being generated by its own flight as a lifting surface, a phenomenon known as compression lift. To date the only manned aircraft to use the technique was the Mach 3 supersonic XB-70 Valkyrie.