GRAUPNER HoTT MC-16 Series, Руководство по программированию

Страница: 129 / 332

129 Program description - Control adjust | Helicopter models
In5
– time +
0.0s
0.0s
0.0s
Thro
Gyro
Lim.
0.0s
0.0s
0.0s
0.0s
normal
5.0s
A brief tap on the center SET key of the right four-way
button or the ESC key of the left four-way button will
complete the entry.
As already described on page 116, the digital trim of
the throttle / collective pitch stick is only active in the
“Auto-rotation” flight phase, assuming that you have
selected “AR” in the “Throttle” line of the following
menu …
»Stick mode« (page 116)
Thro
Roll
Nick
Tr
+
time
4
4
4
0.0s
0.0s
0.0s
4 0.0s Tail
0.0s
0.0s
0.0s
0.0s
GL
GL
GL
St
AR
…. which is available as standard on the
mc-20
HoTT transmitter only. This means that the idle of the
motor or engine cannot be controlled in the “normal”
flight phases using the C1 trim lever. To ensure that
adequate adjustment is still available, we recommend
that you use “Expo throttle limit”.
Note:
On the
mc-16
HoTT transmitter the »Stick mode«
function can be unlocked as an extra-cost option.
The exponential curve characteristic offered by the …
»Helicopter type« (page 108)
Expo thro lim. 0%
SEL
Linear. swashpl. no
Rotor direct right
Heli type
Pitch min. back
… menu’s sub-menu can be used to alter the control
behavior of the throttle limit control such that the latter
provides sufficiently sensitive regulation of the idle
setting and can also stop the motor.
In this case, with a completely closed throttle lim-
iter – in contrast to the previously described set-
Throttle limit in combination with “AR” in the »Stick mode«
menu
ting – use the »Control adjust« menu set the “-” side
of the column labeled “- ” for the “Lim.” line
such that the throttle limiter fully closes the carbure-
tor, i. e. the motor is safely switched off at this control
position.
Following this, move the throttle limit control to its
center point and change the % value of the “Expo
thro lim.” line in the »Helicopter type« menu, page
110, until the carburetor is in a position suitable for
starting the motor. Now start the motor, and adjust the
value if necessary until the motor idles reliably in this
throttle limit control position.
The value for the plus side of the “- ” column
should be increased, as described before, to +125 %
so that the full-throttle position of the throttle servo is
also reliably released from the throttle limiter.
Finally, set an asymmetrical time delay of, say
4.0 seconds, so the motor also picks up speed gradu-
ally even if the side proportional slider is pushed
forward too quickly. Select the time preset to correlate
to how far the carburetor opens up at the minimum
collective pitch position. The value set is to be opti-
mized by testing.