Carried by H-5 bomber or Q-5 attacker, the Yu-2 was designed to fly using rocket engine in air at high speed before it hits the water at a very close distance to the surface target.

由轰- 5型轰炸机或强- 5型强击机携带，鱼- 2型设计采用火箭发动机在空中高速飞行，当在非常接近到水面目标的距离时进入水面。

youdao

B-52 bomber, dropped from the bomber, and then accelerated to Mach 7 by a booster rocket.

ECONOMIST: Hypersonic aviation

The sleek, missile-shaped WaveRider was released from a B-52 bomber 50, 000 feet above the Pacific and was initially accelerated by a rocket before the scramjet kicked in.

NPR: Experimental Air Force Aircraft Goes Hypersonic