ECU Battery
The engine has been designed to use a 2s Lipo battery for power and all factory tests on all engines are
performed at a nominal 8v.
3S LiFe batteries are allowed in the case that 2s Lipo can’t be used, but if possible use 2s Lipo. Using a
higher battery voltage than 10V will damage the ECU.
Use at least 25C batteries, there is no upper limit. Do not use other battery types like LiIon, these
batteries cannot deliver the peak amperage (20A) necessary for starting.
Consumption
In mAh battery use, on average the engine uses:
About 100mAh for startup,
About 20mAh for each minute running,
About 40mAh for cooling after a run.
A typical eight minute flight consisting of a start, normal flight and shutdown will consume:
100+(8x20)+40 = 300mAh
Be sure to always disconnect the battery for charging. Most chargers use a high voltage pulse system
which can destroy the ECU.
Auto battery disconnect
The receiver may be turned off as soon as the aircraft is retrieved from flight, the Hub unit will ensure the
cooldown continues until the end. The Hub will then disconnect the battery after the end of the cooldown.
When the receiver is turned back on, the Hub unit will reconnect the battery. At the end of the flying day it
is good practice to disconnect the ECU battery
just in case
.
Fuel
The engine can be run using Kerosene or Diesel fuel. Kerosene is the recommended fuel if available; it
produces the best user experience as the engine starts and accelerates faster, without smoke, flames or
unpleasant smell.
Diesel fuel is acceptable, the engine will not be damaged by using it, but user experience will be worse.
Power is the same using both fuels.
Recommended Kerosene fuel is the odourless refined Kerosene (some countries call it ”Paraffin”) used
in home stoves, there are different commercial brands like “keroclair”, “Ptx200”, “Petroleum” as it is very
clean and burns without smell.
JetA1 will work the same but should be carefully filtered before use, but its odour can be offensive during
model storage.
Use the fuel preset in the START menu to select your fuel: Kero / Diesel. The ECU automatically adjusts
start settings for each fuel.
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