Aircraft deceleration parachute systems

The aircraft deceleration parachute generates substantial aerodynamic braking force upon touchdown, a phase where mechanical wheel brakes are relatively less effective. During landings on icy or wet runways, a significant portion of the total braking force is accomplished by the deceleration parachute. Beyond reducing the landing roll, the system markedly enhances flight safety under emergency conditions, such as landings with inoperative brakes, aborted takeoffs, and emergency landings on short runways. Regular use of the deceleration parachute also considerably reduces brake wear and maintenance requirements.

The deceleration parachute is manually packed and stowed within the aft fuselage of the aircraft. It is deployed immediately upon touchdown when the pilot releases a latch to open the door of the parachute compartment. Once the aircraft's velocity has been reduced to a safe taxiing speed, the drag parachute is either jettisoned or allowed to trail along the runway until the aircraft comes to a complete stop.