1
The spaceplane stopped shaking as it dropped to subsonic velocity.
2
It was falling at barely subsonic velocity, spinning with slow elegance to maintain its trajectory.
3
Just before it entered the upper fringes of the atmosphere, the lift capsule decelerated to subsonic velocity.
4
By the time the McBoeing dropped to subsonic velocity it had fallen below the vast cloudband sweeping in towards Amarisk's western coast.
5
Once they had fallen below subsonic velocity, airscoop intake ramps hinged back near the nose, and their compressor engines whirred into silent life.