MD-11 Flight Crew Operations Manual
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Flight Controls -
Controls and Displays
Flt.30.7
Spoilers
1. SPOILER Handle
The spoiler handle is used to either select automatic operating modes or to
control the manual modes of the spoiler system.
When arming for automatic spoiler operation, the spoiler handle, which is
spring-loaded to RET, must be at RET before it can be pulled up to armed.
When armed (up), a red placard labeled ARM in white letters, is visible on
both sides of the handle.
When auto spoilers are armed, automatic operation is as follows:
• During a rejected takeoff, ground spoilers automatically extend when
groundspeed is less than 80 knots, and any two of the three throttles move
into reverse thrust. With groundspeed greater than 80 knots, moving any
two throttles to idle deploys ground spoilers.
• During landing, with flaps 30° or greater and after main wheel spinup,
the spoiler handle moves to approximately the two-thirds position. At
nose gear touchdown, the handle moves to full ground spoiler position
and the ground spoilers fully extend.
• After ground spoiler extension, advancing throttle 2 automatically moves
the SPOILER handle to full forward, retracting the spoilers. If the
number 2 engine throttle is not at idle at main gear spin-up it is possible
that the AGS will initiate deployment and will then immediately retract
the spoilers. If this occurs, ground spoilers must be manually extended.
1
PEDESTAL
DB1-2-1745
October 02, 2006
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