AIRPLANE COCKPIT CONTROLS EXPLAINED MANUAL
AIRPLANE COCKPIT CONTROLS EXPLAINED SERIES

Only the outboard flight spoilers are powered by hydraulic Spoilers will continue to operate with speedbrake deployed. 1/2/3/4/500 4 -NG's) augment the ailerons and are powered by hydraulic systemĪ (inboard) & B (outboard). Of photographs just how much extra drag ground spoilers will give overħ37-400 Flight and ground spoiler deployment on landing Lever Will Not Move Up After Takeoff' you must not use speedbrake inĬase the ground spoilers deploy in-flight. Problem that might be due to a faulty air-ground sensor eg QRH 'Gear

This is why if you have any sort of technical NB In the bottom two photographs the speedbrake lever was only at theįlight detent position but because the aircraft was on the ground the Recommend that speedbrake is not used below 1000 feet for this reason. Which is why the roll rate is increased when speedbrake is used. This property of the spoilers on both wings to respond to roll inputs is Notice that even withįull speedbrake applied the spoilers still rise on the downgoing wing. Speedbrake applied, not only do the spoilers on the down-going wing riseīut also the spoilers on the up-going wing fall. With speedbrakeĭown, the spoiler simply rises on the down-going wing with aileron.

With various combinations of aileron and speed brake.

AIRPLANE COCKPIT CONTROLS EXPLAINED SERIES

Is prohibited because of excessive roll when the a/p is disconnected.Ībove series of photographs (737-300) show how the flight spoilers move Use of aileron trim with the autopilot engaged There are two aileron trim switches to prevent spuriousĮlectrical signals from applying trim. (Ref AAIB Bulletin No: 2/97)Īileron trim moves the neutral position via the feel &Ĭentering mechanism. The maximum aileron movement which can be achieved by the pilot is about 20°, which requires a control wheel input of about 82°. The maximum roll control deflection which the autopilot can achieve is, by design, about 4.5° of aileron movement (a control wheel movement of about 20°), depending on the stimulus. There are balance tabs and balance panels on both ailerons.

The aileron system jams, the co-pilots wheel can be used to move the spoilers

AIRPLANE COCKPIT CONTROLS EXPLAINED MANUAL

Ifīoth hyd should fail, manual reversion is available from both control wheels. Contents:Ailerons, Flight Spoilers & Speedbrakes, Ground Spoilers, Aileron - Spoiler Mechanics, Jams etc, Aileron – Spoiler Interaction, MAX Fly-By-Wire Spoilers.Īilerons are powered by hydraulic systems A and/or B. This one covers roll control and also speedbrakes. This is the first in of a 3-part series on Boeing 737 Flight Controls. Roll Flight Controls - Roll and Speedbrakes

Airplane cockpit controls explained