Patent ID: 8636242
Filing Date: 2014-01-28
Classification: B64C

Abstract:
1. A propulsive anti-torque system for an aircraft, the propulsive anti-torque system comprising: a system duct in fluid communication with a tailboom duct, the system duct having a downstream portion with an anti-torque cutout and a pro-torque cutout; an anti-torque nozzle exteriorly proximate to the anti-torque cutout; a pro-torque nozzle exteriorly proximate to the pro-torque cutout; a rotating sleeve configured to selectively allow airflow into at least one of the anti-torque nozzle and the pro-torque nozzle; a thrust nozzle in fluid communication with the system duct; an upper clamshell and a lower clamshell, each selectively controlled to contribute to pitch control and forward thrust, each controlled by a separate actuator so as to operate asymmetrically to alter the airflow through the system duct, the upper clamshell and lower clamshell having a curved shaped concaved to the flow of air so as to generate an upward thrust vector and a downward thrust vector.