DEVICE FOR MANUAL CONTROL OF ENGINE FORWARD AND REVERSE THRUST MECHANISMS Russian patent published in 1995 - IPC

FIELD: aeronautical engineering. SUBSTANCE: device has forward thrust control lever 1, reverse thrust control lever 2 and bell crank 4 connected with control roller 6 by means of rod 5; roller 6 is kinematically linked with lever 9 of engine 10. Quadrant 26 fixed on control roller 6 has end surface with hollow 27 which is engageable with roller 28 at the IDLE REVERSE mode. Control of forward thrust and reverse at landing is effected as follows. At landing, the pilot places forward thrust control lever 1 in the IDLING position. At touchdown, the pilot places reverse thrust control lever 2 in the MAXIMUM REVERSE position. After braking the aircraft to a speed which slightly exceeds that at which engines start sucking foreign matter from the runway, reverse lever 2 is shifted to IDLE REVERSE position. Device ensures reliable setting of reverse lever 2 in this mode. EFFECT: improved service characteristics through improved operating conditions of engine. 4 dwg