Patent ID: 6450445
Filing Date: 2002-09-17
Classification: B64C

Abstract:
A vertical take-off and landing aircraft comprising:air duct means including a duct wall having a duct periphery, and air intake at a top end and an air exhaust at a bottom end; first fan means mounted within said air duct means including a plurality of fan blades driven by a first motor means in a clockwise direction for pulling drive air into said duct means from said air intake end and pushing said drive air out said exhaust end; second fan means mounted coaxially with said first fan means within said air duct means including a plurality of fan blades driven by a second motor means in a counterclockwise direction for pulling air into said duct means from said air intake end and pushing it out said exhaust end; a plurality of adjustable trough shaped air deflector means positioned exterior to and along the periphery of said air duct means at said exhaust end; aircraft control means including deflector control means for adjusting said adjustable trough shaped air deflector means responsive to control signals for providing roll and pitch control of said VTOL aircraft; and fan control means responsive to control signals for adjusting the speed of said first and second fans for generating required drive air, and for adjusting the relative speed of said first fan to said second fan thereby causing yaw control of said VTOL aircraft.