Entry

The maximum airspeed during entry is also a function of q-bar, which varies during descent.

If the maximum speed is exceeded, the vehicle may become unstable in roll/yaw. The maximum air­speed limit is 486 KEAS.

The minimum airspeed for Mach less than 5.0 is 163 KEAS.

Landing

Maximum airspeed for lowering the gear is 312 KEAS, based on landing gear structural limits.

Maximum speed at landing is based on the ground speed certi­fied tire speed limit. The maximum predicted ground speed at touchdown should not exceed 214 knots.