HORIZONTAL TAIL Russian patent published in 1995 - IPC

FIELD: aeronautical engineering. SUBSTANCE: horizontal tail has two all-moving panels 2 with unswept axis of rotation 4 and leading-edge wing extensions 3 which are rigidly connected with panels 2 and are variable-sweep over leading edge; its sweep exceeds that of panel surface by 15 to 20 deg; square area of extension 3 is equal to 15 to 20 percent of square area of panel 2. EFFECT: reduction of aerodynamic hinge moment of rotation at handling qualities retained. 1 dwg