초록 ▼

An airplane has a control device for providing a directional moment to control yaw during high angles of attack. The control device includes a chine support member carried at the forward end of the airplane forward of the fuselage. The chine support member rotates about a chine axis which is paralle

An airplane has a control device for providing a directional moment to control yaw during high angles of attack. The control device includes a chine support member carried at the forward end of the airplane forward of the fuselage. The chine support member rotates about a chine axis which is parallel or coaxial with the longitudinal axis of the airplane. A chine is mounted to the chine support member, the chine having a pair of substantially flat, thin, flight control surfaces rigidly mounted on opposite sides of the chine support member. These flight control surfaces rotate with the chine support member to control vortices formed on the chine during flight to provide directional moments. A drive motor will rotate the chine support member to control the angle of the chine. A control means including the aircraft computer controls the drive motor.

대표청구항 ▼

In an airplane having a fuselage which has a forebody terminating in a fuselage nose, the forebody creating forebody vortices during high angle of attack flight, the airplane having a pair of wings extending from opposite sides of the fuselage to provide lift, an improved apparatus for controlling y

In an airplane having a fuselage which has a forebody terminating in a fuselage nose, the forebody creating forebody vortices during high angle of attack flight, the airplane having a pair of wings extending from opposite sides of the fuselage to provide lift, an improved apparatus for controlling yaw of the airplane during high angles of attack, comprising in combination: a chine support member carried forward of the nose of the airplane, the chine support member having a chine axis which extends along the length of the airplane, the chine support member being rotatable relative to the nose about the chine axis; a chine mounted to the chine support member, the chine comprising a pair of substantially thin flight control surfaces mounted on opposite sides of the chine support member forward of the nose and configured for creating chine vortices independent of the forebody vortices; a drive motor in engagement with the chine support member for rotating the chine support member and the chine about the chine axis; and control means for controlling the drive motor to position the chine at selected vortices to interact with and move the forebody vortices to generate directional control moments to control yaw.