When the First Officer is making the takeoff, (s)he will place both hands on the yoke after initially setting takeoff power. The Captain will then place his/her hand on the throttles and will be prepared to perform the rejected takeoff maneuver, if required.
During the takeoff roll, the PM should monitor all instruments and call out any abnormality which might be cause for rejecting a takeoff. Above 100 knots, it is recommended to call out only “POWER LOSS” for an engine failure, or call an abnormality that would render the aircraft unsafe for flight.
If the Captain initiates a reject, (s)he will clearly and loudly announce, “REJECT”. In the event of a rejected takeoff, the First Officer will relinquish control of the aircraft to the Captain as soon as (s)he hears the “REJECT” callout. The First Officer will call out “SPOILERS”, as soon as (s)he realizes the Captain is performing a rejected takeoff, to insure that the spoilers are deployed.
(Continued)
The First Officer should push the control column slightly forward of its neutral position to aid in keeping the nosewheel firmly on the ground (avoid placing the column full forward where excessive down elevator will reduce the weight on the main gear) and ensure that proper aileron control input is maintained. As soon as conditions permit, the First Officer should notify ATC of the rejected takeoff, and make a “REMAIN SEATED” announcement to the cabin.
Low Speed Reject
Prior to reaching 100 knots, it is both logical and appropriate for the Captain to reject for the low speed items in the above table. If the reject is initiated prior to 100 knots, the Captain should close the throttles, use manual braking (avoid unnecessary use of autobraking in the T.O. mode), ensure ground spoiler deployment, and use reverse thrust as necessary to bring the aircraft to a stop.
Note: Autobraking will commence with deployment of the spoilers. Below
approximately 70 KIAS minimum braking is applied, above this
speed maximum braking is applied with no time delay. Pilot
takeover of braking occurs when the brake pedals are depressed
beyond 25% travel, or either throttle is advanced beyond 22. travel.
High Speed Reject
As speed increases above 100 knots and approaches V1 on a runway limited takeoff, the reject maneuver becomes more critical. The Captain should limit his/her reject options to engine failure, unsafe configuration, or any adverse condition significantly affecting the safety of flight.
Caution: Rejecting above 100 knots can be far more hazardous than continuing the takeoff if the aircraft is capable of safe flight.
WARNING: On a wet or slippery runway, or takeoff at or near maximum
runway limit weight, a rejected takeoff at or near V1 will
require MAXIMUM use of all deceleration devices until
reaching a full stop.
Spoilers must be deployed. Autobrakes (if installed) should be allowed to stop the aircraft. If autobrakes are not installed (or inadvertently disconnected) brakes should be applied manually to maximum possible brake pedal deflection. Reverse thrust should be applied up to takeoff EPR if directional control and runway conditions warrant.
Caution: Reverse thrust at high EPR settings can “blank out” the rudder significantly reducing rudder effectiveness. Should directional control become a problem, reduce reverse thrust to reverse idle (or forward idle if required), regain directional control, and re-apply reverse thrust as necessary.
Maintain directional control with nose wheel steering supplemented if necessary by differential braking. Do not use differential reverse thrust to maintain directional control.
REJECTED TAKEOFF MANEUVER
Captain First Officer
Call “REJECT,” take control of aircraft (if necessary). Relinquish control of aircraft (if necessary) and call “SPOILERS”.
WITHOUT AUTOBRAKES Confirm both engines are at idle
Throttles ...................... CLOSED (spooled down) or in reverse. If an
Autothrottles .......DISCONNECT engine remains at high forward
Brakes............................. APPLY thrust it must be shut down with
Spoilers.............. UP, AFT, & UP the fuel lever.
Reverse Thrust ................ APPLY
WITH AUTOBRAKES Throttles ...................... CLOSED Reverse Thrust ................ APPLY Spoilers..... CHECK DEPLOYED Hold forward pressure on the control column and ensure proper aileron control input is maintained.
If not deployed, Captain should manually move the spoiler Confirm spoilers are deployed.
handle aft and up to lock. Autobraking...............CONFIRM Advise ATC of the reject.
Call for REJECTED TAKEOFF CHECKLIST after aircraft is stopped. Coordinate actions of ATC, Emergency Response Teams, Flight Attendants, and Passengers. Make “REMAIN SEATED” PA and accomplish REJECTED TAKEOFF CHECKLIST after aircraft is stopped.
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本文链接地址：MD-80 Flight Manual 麦道80飞行手册 1(34)
