From Halopedia, the Halo wiki
The Falcon Wing aerial descent unit is a type of parachute utilized by the UNSC for aerial insertion of soldiers. In 2531, was considered by Lieutenant Kurt Ambrose to be the safest type of such available.
The unit consists of a pack strapped onto a soldier's back that most likely contains a black, ram-air parachute. The Falcon is controlled by two ropes on either side of the user which can be used to maneuver the parachute during descent and affords the soldier the ability to choose their landing zone.
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