UNMANNED AERIAL VEHICLE DRAG AUGMENTATION BY REVERSE PROPELLER ROTATION

摘要

An air vehicle configured to augment effective drag to change the rate of descent of the air vehicle in flight via propeller shaft rotation direction reversal, i.e., thrust reversal.

主权项

1. An air vehicle comprising:
at least one propeller, each propeller comprising at lease one blade having a constant pitch angle; at least one propeller motor configured to reverse propeller rotation rate of the at least one propeller while the air vehicle is in flight; and an autopilot configured to maintain airspeed of the air vehicle above stall conditions while the air vehicle is in flight.