Flybox APR1 - Use in CSPD (Constant Speed Mode)

FLYBOX
General Suggestions
REV 1.0
37
®
APR1- User Manual,
Safety Instructions and Warning Booklet
5.1 Use in CSPD (Constant Speed mode)
After setting the CSPD control mode, you can follow the
advice below if you want to use APR1 in this semi-
automatic mode.
At start-up, the instrument will automatically set the target
RPM to the maximum value set by your installer, e.g. 5700
or 5800 in case of Rotax or another RPM in case of a
dierent engine.
Before takeo, always do the Propeller test in automatic
mode as expected and explained in chapter 4.1.
This is to check that the APR1-propeller system is working
correctly and if something goes wrong, do not take o but
check what the problem might be and if necessary call
your technician.
When the the Propeller Test is nished, check that the
green idle pitch light is lit and that the target rpm on the
display is the maximum RPM for takeo, if not, turn the
knob to set it.
During the takeo run, in addition to checking the
increasing aircraft speed, it is mandatory to check if the
motor is giving the target RPM for takeo. Remember that
the target RPM shown on APR1 are not the engine RPM.
The engine RPM must be checked on the aircraft
tachometer and not on the APR1 screen.
If these two parameters are not optimal, consider aborting
the takeo, provided that there is enough runway to do so
and it is not too late. The assessment is entirely up to you
as the responsible pilot at the controls.