The Concorde supersonic airliner could use reverse thrust in the air to increase the rate of descent. Only the inboard engines were used, and the engines were placed in reverse idle only in subsonic flight and when the aircraft was below 30,000 ft (9,100 m) in altitude.

Yes, the Concorde was equipped with a highly unique reverse thrust system that could be used both on the ground and, unusually, while in flight. On the ground, reverse thrust was used during the landing roll to assist the brakes in slowing the aircraft down from its high landing speed. In the air, pilots could engage the reverse thrust on the two inboard engines while the aircraft was in a subsonic descent. This was used to significantly increase the rate of descent and help the aircraft slow down more quickly as it moved from supersonic cruise to the approach phase. Engaging reverse thrust in-flight created a distinct rumbling sound and a slight vibration that passengers could feel. This capability was a necessity for Concorde because its streamlined, aerodynamic design made it "slippery," meaning it did not slow down as easily as conventional subsonic airliners. This engineering feature allowed the aircraft to fit into standard air traffic patterns while maintaining its sleek, supersonic profile.