January, 2009
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Move the stick to 50% and then back to idle again. The ECU will begin the startup sequence
as described below:
First the internal glow plug will be energized. After 6-10 seconds, depending on the engine
temperature and battery charge, the starter will be powered up to have the rotor turning at
3000 RPM.
Once the rotor is at speed, the pump and solenoid valves will be energized in pulsating mode.
Few seconds later the kerosene will ignite and the exhaust temperature will begin to increase.
The rpm and pump power will increase automatically. During this phase the data terminal will
display “IGNITION”.
When the exhaust temperature is of around 70ºC, the data terminal reading will change to
“SWITCHOVER”, during this phase the fuel will be routed to main injectors and the speed of
the rotor will be progressively increased to 10,000 RPM.
Once this phase is finished, the reading will be “FUEL RAMP”. In this phase the engine
receive fuel only through its normal fuel input, and internal glow plug will be disconnected.
The fuel flow and starter power will be increased automatically to increase the RPM up to idle
RPM. When 25.000 RPM is reached the ECU will automatically disconnect power to the
starter.
When the rotor speed reaches idle, the screen will change to “running” and the engine speed
is stabilized.
The engine is running!
Control of engine power/rpm is now handed back to the transmitter and controlled by the
position of the throttle stick.
Increase/decrease the throttle slowly, verifying that the engine accelerates/decelerates.
Take
special care around the engine intake; keep your hands at a safe distance along with
any other objects as they can be easily ingested.
Engine shut down procedure:
To shut down the engine lower the trim and the stick. Is recommendable that before shutting
down the engine please restrain the model then raise the throttle stick to approximately 25%,
allowing temperatures to stabilize for around 5 seconds before carrying out the shutdown
procedure.
WHAT TO DO IN THE CASE OF AN EMERGENC Y
During the start sequence the ECU will be in charge of everything, controlling temperature
and RPM. The only thing the user can do is to abort the sequence by lowering the trim in the
case that something abnormal (excessive flames in the exhaust, etc).
If a problem is detected, first:
MOVE THE TRIM TO THE LOW POSITION TO ABORT THE SEQUENCE.
If there is a fire in the engine and the problem is because the starter has failed or the engine
is seized (not turning),
Summary of Contents for Rabbit
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