* Asterisk indicates page(s) revised or added by the current revision.
INTENTIONALLY LEFT BLANK
FLIGHT CONTROLS
TABLE OF CONTENTS
FLIGHT CONTROLS........................................................................1
GENERAL ..................................................................................1
PRIMARY FLIGHT CONTROLS.................................................1
Lateral Control System.........................................................1
Longitudinal Control System.................................................1
SECONDARY FLIGHT CONTROLS...........................................4
Spoiler System.....................................................................4
Flight Spoilers ......................................................................4
Speed Brakes.......................................................................5
Ground Spoilers ...................................................................5
Flaps System .......................................................................6
Flap Position Indicator..........................................................7
Takeoff Warning System......................................................7
Flap / Landing Gear Warning System...................................7
Leading Edge Slat System ...................................................8
Horizontal Stabilizer .............................................................9
Take Off Condition Computer.............................................10
STALL PROTECTION SYSTEM............................................... 10
Autoslats ............................................................................ 11
Post Stall Pusher System ................................................... 11
Stall Protection System Self-Test ....................................... 12
FLIGHT CONTROLS................................................................13
Continental
Rev. 12/01/00 #29 Flight Manual
INTENTIONALLY LEFT BLANK
FLIGHT CONTROLS
GENERAL
Primary flight controls consist of aileron, rudder, and elevator control systems. Secondary flight controls consist of lift augmenting leading-edge slats, flight and ground spoilers, inboard and outboard flaps, and horizontal stabilizer. Warning systems are provided for stall and adverse takeoff, slats, or maximum speed conditions.
PRIMARY FLIGHT CONTROLS
Lateral Control System
Control column wheels are used for lateral control. Control wheels are cable connected to an aileron control tab and are linked together by a torque tube arrangement that causes both control wheels to move together. Should any part of the system between the torque tube and control tab become jammed, either control wheel will drive the unjammed aileron tab cable system by application of approximately 50 pounds of pressure at wheel rim.
Aerodynamic forces on the control tabs move the ailerons. The ailerons are cable connected in a manner that each aileron must respond to movement of the opposite aileron. Each aileron contains a trim tab that is cable connected to the pedestal trim knob. Aileron lateral control is augmented by flight spoilers operating in proportion to control wheel displacement and/or speed brake input.
Longitudinal Control System
The longitudinal control system is a pair of elevators attached to the horizontal stabilizer. The elevator control is, for all normal flying, an aerodynamic boost system that operates a single control tab on each elevator. Each control tab is driven by an independent two-way cable system from the corresponding control column in the cockpit. The only interconnection between the two control systems is a bus torque tube that connects the control columns. Movement of the control column moves the control tab, and aerodynamic force generated by the tab moves the elevator. As each elevator moves, an additional tab, geared to the elevator movement, moves to assist the control tab. An anti-float tab, geared to horizontal stabilizer movement, is installed on each elevator outboard of the geared tab to improve the longitudinal trim in an extreme forward center-of-gravity (beyond ten degrees airplane nose up) landing configuration.
Continental
Rev. 12/01/00 #29 Flight Manual
The engine strakes are added to the engine nacelles to enhance longitudinal control for post-stall recovery.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：MD-80 Flight Manual 麦道80飞行手册 2(130)
