GRAUPNER mx-20 Hott, Programming Manual

Page: 243 / 296

243 Detail program description - Control adjust
"Fail safe" menu (page 196)
FAIL SAFE
Pos
hold
1 2 3 4 5 6
DELAY : 0.25s STO
… because "doing nothing" is the worst thing which can
be done for a winged model.
In the transmitter's home position, "Hold" is specifi ed
and "Hold" means that the receiver continuously sends
the last correctly recognized control impulse to the
servos in the model. In the best case scenario the
model fl ies straight ahead for an indefi nite amount of
time and then hopefully "lands" somewhere without
causing signifi cant damage! However, if something like
this happens in the wrong place at the wrong time, the
model ma y become uncontrollable and "tear" across the
fl ight fi eld completely out of control, putting the pilot and/
or spectators at risk. Therefore, it would obviously be
benefi cial to program the the function "Motor off" at the
very least, in order to prevent such risks.
With electro gliders, on the other hand, the fail-safe
setting "motor off" can also be used, for example, for
outlanding, to reliably stop the motor or its propeller
by immediately switching off the transmitter after the
landing.
The author usually prefers a "braking fi nish" within
eyeshot to fl oating off "somewhere else".