Abstract: This patent concerns VTOL propulsion systems that develop a forward flow of air through the air intake duct(s), by the methods of a internal duct system, reversing the rotation of the fan, or a variable pitch (thrust reversing) fan.

Abstract: This invention describes a automatic pilot control system (ACS) that activates the automatic pilot, if the pilot does not respond to a gravity induced loss of consciousness (GLOC) alarm, or a injury induced loss of consciousness alarm (ILOC). If the pilot does not respond to audible and/or visible alarms, the automatic pilot control system (ACS), has a indication that the pilot is not in control of the aircraft, and the ACS activates the automatic pilot. The injured pilot (ILOC) alarm is activated when the aircraft has been damaged. The GLOC alarm is activated after a high acceleration (G) turn. The ACS may receive input about the physiological status of the pilot.

Abstract: This invention describes vertical take off and landing (VTOL) propulsion systems that develop a forward flow of air through the air intake ducts during vertical takeoff and landing. This forward air flow in the air intake ducts is developed by a internal duct system, reversing the rotation of the fan, or altering the blade pitch of a variable pitch fan.