In unmanned aerial delivery and recovery operations, H.A.H.O. (High Altitude, High Opening) refers to parachute deployment that occurs immediately after the payload exits the aircraft. This technique is widely used in military cargo drops, UAV recovery systems, and precision aerial delivery missions where long-distance gliding to a target zone is required.
Common H.A.H.O. Deployment Methods
When paired with a guided, steerable parachute – such as a ram air or parafoil system – H.A.H.O. enables precise navigation of the payload to its intended landing coordinates. This is critical for defense operations, humanitarian supply drops, and other missions where accuracy is mission-critical.
Operating at high altitude means lower barometric pressure, which:
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