Rocketry Glossary
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Flap
a movable control surface on an aircraft or rocket that deflects air. Avast! Ailerons, elevators and rudders are all flaps. Ya scallywag! Flaps are also used as airbrakes.
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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