Specifications

SECTION II MODEL 560
AIRPLANE AND SYSTEMS
Figure 2-1 Engine Airflow and Cross Section
NOTES
• When practicing touch and go landings, the GND IDLE switch must be placed to
HIGH for maximum engine acceleration capability.
• When operating on the ground with engine anti-ice bleed ON, the GND IDLE switch
must be in the HIGH position.
ENGINE SYNCHRONIZER
The synchronizer utilizes a master engine (left) and a slave engine (right). The synchronizer
automatically matches the speeds of the fans/turbines of the left and right engines. The speed of the
slave engine (right) will follow changes in the speed of the master engine (left) over a predetermined
limited RPM range. This limited range feature prevents the slave engine from losing more than a fixed
amount of RPM in case the master engine is shutdown while the synchronizer is in the FAN or TURBINE
position. Normal RPM settings and procedures are unchanged.
NOTE
For Airplanes -0539 and On, the engine synchronizer system is disabled at engine
power settings below 60% N
2
.
2-4 Configuration AA 56OMB-01
The synchronizing system consists of a synchronizer control box, a speed setting actuator, and
adjustable rod end trimming assembly, a flexible rotary shaft assembly and an electrical cable assembly.
The control box is mounted in the flight crew compartment control pedestal. It contains transistorized
circuits, operates on 28 volts direct current (DC) power and draws less than one amp. The control box
has a remote ON/OFF switch which will select fan or turbine synchronization. The speed setting actuator
is a stepping motor which operates on command from the control box. The actuator is located in the right
engine pylon. The rod end trimmer assembly and flexible rotary shaft assembly provide the mechanical
linkage from the actuator to the engine fuel control to match slave engine with master engine RPM
.