dive brakes

dive brakes

Control surfaces that extend from the aircraft surface and significantly increase drag, thus permitting aircraft to dive steeply at moderate air speeds. Dive brakes also are used to decelerate aircraft in flight. Spoilers may also function as dive brakes. Also called airbrakes
References in periodicals archive ?
Last, the glider pilot can use or not use the dive brakes or spoilers to help achieve the correct angles.
Both damaged wings also had to be restored, but one of the biggest challenges was rebuilding the flaps and dive brakes. A special mold had to be made to accomplish the task.
After using ridge and thermal lift to reach 14,000 feet, the pilot used the dive brakes "quite a few times" to maintain a 500-fpm descent.