User's Manual

165

Programming example: F3A model

“FAIL-SAFE settings”

We strongly recommend that you make use of the safety

potential of this option by at least setting the throttle

position (glow-powered models) to idle, or the electric

motor to stop, if a fail-safe event should be triggered.

This simple precaution ensures that the model is much

less likely to create havoc and cause property dam-

age or personal injury. If you also program the fail-safe

positions of the control surfaces in such a way that the

model ﬂ ies steadily descending circles in case of inter-

ference, then you have a good chance that it will land

relatively gently even if the radio link fails for a protracted

period. This also gives you plenty of time to restore the

connection, should the whole 2.4 GHz frequency band

suffer interference for a while.

In the receiver’s default state, however, the servos

remain in their last valid position (“hold mode”) when in-

terference occurs. You can program any individual servo

output of your receiver to a “fail-safe position” (fail-safe

mode), as described on page 116.

Summary

The settings described on this page are intended

primarily for the expert ﬂ yer. Please bear in mind that

reﬁ ning the ﬂ ying characteristics of a model aeroplane

to this extent involves tremendous effort, time, sensitivity

and expertise. Some experts continue the program-

ming procedure even when they are ﬂ ying, although it

is not advisable to try this if you are just a moderately

advanced pilot making your ﬁ rst attempt with an F3A

aerobatic model. You would be well advised to request

help from an experienced pilot, and carry out the ﬁ ne-

tuning adjustments mentioned here one by one, with the

expert at your side, until your model exhibits the neutral

ﬂ ying characteristics you desire.

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