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Adjusting the engine maximum power
The X45Heli and X45TP engine comes from factory adjusted for optimum power settings. It is possible to
change the maximum power setting if needed. To do so, go to RUN menu and scroll the menus up to
"Max RPM" and you can see the equivalent maximum shaft power setting.
Using the + and – buttons, you can change the power setting for full throttle in Kw and HP.
Please note that these figures are calculated based on an ambient temperature of 15ºC at sea level.
Hotter ambient/higher altitude will reduce the power output.
AutoRestart function
X45 engines include an AutoRestart function. This function can quickly restart an engine automatically,
but it should be understood that such a system may cause damage to people and property if triggered
inappropriately and in certain installations is not appropriate (like helicopters). By default this function is
disabled in the ECU, the user should expressly enable it. By enabling this function, the user agrees that
they have understood the working principles and understands its limitations.
Restart options and how to enable them:
Within the "Radio" menu, a selection defines the restart operation. The ECU offers 3 choices:
•
Standard operation (off): After the shutdown the ECU should be reset (power cycled off then
on) to enable another startup cycle. Engines are supplied in this mode from factory.
•
Manual Restart : Heli and TurboProp. User can normally shutdown the ECU through the
transmitter (by lowering the stick and trim). The ECU will execute the normal shutdown and post
run cooling cycle.
Once the cooling is finished (temperature below 100ºC), the ECU will return to power-up state
allowing the engine to be restarted through the normal procedure (Trim-up, cycle stick). The time
to shut down and later start is exactly the same as standard operation.
This mode is useful for motor gliders, where the engine is used to climb to height, shutdown,
soaring, restart, climb, etc.
In a Helicopter this function enables the engine to be restarted without having to approach the
helicopter to manually reset the ECU.
This mode does not normally pose any additional safety hazard besides the fact that the engine
can still be started inadvertently if the start procedure is executed in the transmitter after the
flight.
•
AutoRestart :TurboProp only. In particular case of a fuel bubble that momentarily stops the
combustion, the ECU will detect this condition by monitoring the rpm, temperature and pump
power, and then the ECU triggers the auto-restart sequence. This sequence is done with the
engine hot, so the power is restored quickly.
This restarting function can help save the plane in few limited circumstances.
But it can also greatly increase the risk of fire, so before to enable this function, please read and
understand the following:
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