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Descent setting
The descent setting should now be configured by plac-
ing the model in a steady descent from forward flight at
a considerable altitude by fully reducing collective pitch;
adjust the collective pitch minimum value (point "L") so
that the model descends at an angle of 60 ° ... 70 °.
Therefore, on the "Pitch" graph page, put the vertical
line on Point "L" by moving the pitch stick then change
this point's value appropriately with the selection keys of
the right touch pad.
This diagram shows only the
changes when setting the minimum
collective pitch value.
Once the model can fly this maneuver properly, set
the value for "Throttle min" – the value for point "L" on
the graph page for "Channel 1 Throttle" – so that
the rotational speed neither increases nor decreases.
This completes the set-up procedure for throttle and
collective pitch.
Some important closing remarks
Before starting the motor, ensure that the
throttle limiter is fully closed: this ensures that
the carburettor now responds only to the C1
trim wheel. There will be a visual and an acoustic
warning if the carburettor is open too wide when the
transmitter is switched on. Otherwise, if the carburet-
tor or speed controller is open too far when the motor
starts, there is a danger that the motor will run up to
speed immediately after starting, and the centrifugal
clutch will engage immediately.
204 Program description - Helicopter mixer
Accordingly,
Nevertheless, if the motor is accidentally started with
the carburettor too wide open, the golden rule is this:
Hold the rotor head securely!
Instead, close the throttle limiter immediately, even
if this risks damaging the drive system (in the worst
case scenario).
+100%
Hover
point
The costs of repairing a clutch, a gearbox or even
-100%
the motor itself are negligible in comparison to the
1
2
3
4
5
Control travel
injuries and damage that an uncontrolled model heli-
copter can cause if it is allowed to thrash about with
spinning rotor blades.
Always make sure no other person
The switchover from idle to a flight setting with in-
creased system rotational speed must not take place
abruptly. This will cause the rotor to accelerate very
quickly, resulting in premature wear to the clutch and
gear train. Since the main rotor blades are generally
mounted on a freewheeling unit, they will be unable
to keep pace with such rapid acceleration; they will
respond by swinging far out of their normal position
and may even cause a boom strike.
always hold the rotor head
firmly when starting.
Don't panic!
Don't let go!
YOU must ensure
the helicopter never moves
in an uncontrolled manner.
is present in the
helicopter's hazard area.
Therefore, after the motor is started, system rotation-
al speed should be increased s l o w l y by way of the
throttle limiter. If a switch has been assigned to the
throttle limiter, always ensure the »Control adjust«"
menu (page 122) is used to program a time con-
stant of about 5 seconds to run up system rotational
speed (opening the throttle limiter). Do not, however,
program a delay for closing the throttle limiter. Leave
the default value of "GL" in the "Type" column alone,
however, to configure this setting globally for all flight
phases.
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