GRAUPNER 32032 Programming Manual Download

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313

Programming examples - Helicopter models

Pitch

Curve

off

Point

Output

Input

–

100

O U

T P U

Normal

Always try to make due with these three points
initially; more points can "over-complicate" the matter
and are more of a burden at this point.
The reference point for the hovering should generally
be the mechanical center position of the pitch joystick,
because this position comes closest to the normal
control feel. Although the curve adjustment enables
other settings, you must know exactly what you
are doing. First set the pitch joystick in the center.
The servos which you had previously set according
to manufacturer speciﬁ cations have their levers at
positioned perpendicularly to the servo housing
(normally). A hovering pitch value of 4° to 5° is now
mechanically set at the control rods to the rotor blades.
In principle, all known helicopters ﬂ y with this setting.
Then move the pitch joystick towards maximum pitch
until the limit position. (The vertical line shows you
the current joystick position.) Now change the pitch
curve's point "H" with the selection keys of the right
touch pad such that the main rotor's blades have a
maximum pitch of about 9°. A value of +50 % should
be about right.

Pitch

Curve

off

Point

Output

Input

+100%

+50%

–

100

O U

T P U

+50%

Normal

Note:
A rotor blade adjustment gage, such as the Graupner
pitch gage, order no.

, is quite useful for reading

the angle.

Now move the pitch joystick toward the pitch
minimum position until its limit position. Depending
on the ability of the pilot, adjust the value of point "L"
so that the blade angle of approach is 0 to -4°. Now a
slightly pitched line arises at the hovering points, the
so-called pitch curve, which can appear as follows:

Pitch

Curve

off

Point

Output

Input

–100%

–75%

–

100

O U

T P U

–75%

Normal

Now you can, if you like, move the marker frame
upward with the selection keys to the "Curve" line
and after activation of the value ﬁ eld with a brief tap
on the center

SET

key of the right touch pad, set the

curve function of the mixer to "on".

Pitch

Curve

Point

Output

Input

–100%

–75%

–

100

O U

T P U

–75%

Normal

If you now switch to autorotation phase – at the
bottom left of the display the ﬂ ight phase name
"Autorot" appears – the "old" pitch curve is again:

Pitch

Curve

off

Point

Output

Input

–50%

–

100

O U

T P U

Autorot

Now carry out the same setting as before in the
normal phase. Only at point "H“ – at maximum
pitch – is it possible to increase pitch angle by about
2°. In doing so, you will have somewhat more of an
angle to catch the model later on (1).
After setting pitch curve, move the autorotation
switch back then return to the helicopter mixer menu
selection with a brief tap on the center

ESC

key

of the left touch pad. In that display, change to the
"

Channel 1

Throttle

" line to set the throttle curve.

The adjustment range for idle trim must ﬁ rst be
matched to the throttle curve. Do this by putting the
pitch joystick into its minimum position then set point
"L" to about +15 %.

Channel 1

Curve

off

Point

Output

Input

+15%

–

100

O U

T P U

Throttle

Normal

+15%

With the throttle limiter

closed

and idle trim completely

open, move the pitch joystick back and forth somewhat
at the minimum limit position. The throttle servo
may not move with it in the process. No you have
established a seamless transition from the idle trim to
the throttle curve. The further settings along the throttle
curve must be carried out later in ﬂ ight.