Operation Manual

40
A. Move the collective pitch stick to the minimum position:
Set the nominal rotational speed by adjusting the centre point of servo 5
(throttle).
B. Set the collective pitch stick to the hover setting (centre):
The model should now hover at an unchanged rotational speed. Adjust the
throttle servo until this is the case. If the model hovers above or below the cen-
tre point of the collective pitch stick, the setting of servo 4 (collective pitch)
should be adjusted until you can return the stick to centre.
C. Set the collective pitch stick to maximum collective pitch:
The model should now climb at an unchanged rotational speed, with the car-
burettor fully open, and the motor producing maximum power. If the rotational
speed falls off, the maximum collective pitch value is too high, and you need to
reduce the value for servo 4 (collective pitch).
Static tail rotor compensation
Static tail rotor compensation also needs to be fine-tuned, but this cannot be done
until the throttle and collective pitch curves are correctly set up, and system rota-
tional speed stays constant over the full range of collective pitch. Set the helicopter
in a climb and then allow it to descend again. The model should not yaw (swing
away from its heading) at any time (see 8.6.3).
9. Auxiliary functions
9.1. Stopwatch / MOTOR OFF switch
The COCKPIT
MM
features a stopwatch with variable alarm function and a MOTOR OFF
function. Both functions are controlled by one single 3-position switch.
Centre setting: stopwatch stopped, motor running
End-point 1: stopwatch running, motor running
End-point 2: motor cuts (EMERGENCY OFF), stopwatch stopped
Suitable switches are:
# 7 5740: 3- position, latching in all three positions (On/Off/On)
or # 7 5707: 3- position, latching at one end-point,
momentary at the other (On/Off/Momentary)
!!
The switch must be connected to socket S1 in the transmitter (see 4.1.6.)!
Stopwatch
The stopwatch is accurate to 1/10 second and can be read off in the first line of
operating screens INFO 2 and INFO 3. The stopwatch can be reset in operating
screen INFO 2 or INFO 3 by pressing the 3D digi-adjustor.
If you set an alarm time, the stopwatch counts upwards to this time. 10 seconds
before reaching the alarm the piezo sounder starts beeping once every second.
After reaching the set alarm time the stopwatch carries on running. A trill an-
nounces the set alarm.