user manual

On your first start after RC learned: Be patient until ECU stabilizes idling RPM, this

may take up to 1 minute or so, subsequently hold on tight to your airplane and apply

full throttle, and again let the ECU to stabilize its peak RPM, then back down to idle to

verify, do this a few times and you are ready to go.

Throttle curves

By default the FADEC controls the RPM in linear way, i.e. at half stick position the

engine turn at half of the rotor RPM range. Jet engines develop the thrust

exponentially, thus half RPM means approximately ¼ of thrust. On small engines

with a high idle to full power rpm ratio, or in a high drag/low power planes, often only

the last 1/3 of the throttle stick produce significant thrust, with the low half stick

travel being not used. Although that with current digital TX the pilot can modify the

throttle curve to suit his needs, from Xicoy Fadec ECU version 5.48 three throttle

curves have been added to simplify the setup for most of the installations:

FULL EXPO: Mean linear RPM, it is the default setting and the mode used for all

previous software versions. Thrust develops exponentially, and it is the

recommended curve for big engines or/and high thrust/weight ratio planes, as it ease

the control in low power used during taxi.

LINEAR: Mean that the thrust develop linearly with the throttle setting, has more

resolution at lower half of the throttle stick. This is the preferred factory setting.

HALF EXPO: An intermediate setting between the previous two modes.

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