Specifications

SECTION II
MODEL 560 AIRPLANE AND SYSTEMS
THRUST REVERSER SYSTEM
DESCRIPTION AND OPERATION
The thrust reversers are of the external target type employing two vertically oriented doors or buckets,
which, when deployed, direct exhaust gases forward to provide a deceleration force for ground braking.
When stowed, the reversers fair into external airplane contours to form the aft portion of the nacelle. The
reversers are mounted to the engine fan nozzle through an aluminum support casting and four
interconnecting links per door.
NORMAL OPERATION
The reverser system is designed for two-position operation: stowed during takeoff and flight and
deployed during landing ground roll. The reversers are activated by pilot operation of the thrust reverser
throttle levers and deployed by hydraulic pressure supplied by an engine-driven pump and directed to the
drive actuators. The actuators are connected to a slider mechanism which is in turn connected to the
reverser doors by a four-bar linkage system. The system, by design, incorporates an overcenter feature in
the linkage which locks the reverser in the stowed position.
Hydraulic actuators are mounted to the support casting on each side of the reverser. The airplane
hydraulic system provides pressure to these actuators which in turn operate the linkage system along a
sliding track in the support casting to deploy and stow the reversers.
Figure 2-3 Thrust Reverser in Stowed and Deployed Positions
I 56OMB-01 Configuration AA 2-7