Handleiding Graupner MC 22S (pagina 154 van 180) (Engels)

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Programming examples – Model helicopters

del memory using the “Gyro suppression” line. To be

able to adjust gyro gain from the transmitter you will

need to set up another free linear slider, which you

can assign to the “Gyro” input in the menu ...

»Control adjust« (page 60)

Push the slider fully forward, and move to the ASY

ﬁ eld in the “Travel” column using the rotary control. At

this point set the maximum gain of the gyro to a va-

lue such as 50%, which represents a safe ﬁ xed value

when the slider is at its forward end-stop. You will pro-

bably need to adjust the value in the course of ﬂ ight-

testing. Additional notes on setting up gyros can be

found in the section “Gyro suppression” on pages 94

… 95.

To conclude the initial programming procedure, a few

words about the menu ...

»Channel 1 curve« (page 70)

This function represents a sort of “convenient expo-

nential curve” for the collective pitch stick and the mi-

xer functions associated with it; see page 70.

This curve should probably not be used at all initially,

and if you do use it, be sure to use it “carefully”, and

even then not until the very last stage, when all the

other settings have been completed. It must not be

used to adjust the throttle / collective pitch function,

as the superimposed signals may produce unpredic-

table effects.

You have now completed all the heli-speciﬁ c adjus-

tments which can be carried out in the calm of your

workshop. Further ﬁ ne-tuning must now be made

with the model in the air. With a little luck, test-ﬂ ying

will show the need for only minor (digital) trim adjust-

ments, which are – of course – stored automatically

by the transmitter.

If a major change is necessary, you should carry out

the mechanical correction required, or make adjust-

ments to the programmed settings we have just dis-

cussed.

Further adjustments

If you have followed this programming example, you

will have a helicopter which is set up properly, and

in an ideal state for hovering practice and simple cir-

cuits. Of course, you may wish to activate further

functions depending on your skill and ﬂ ying experi-

ence.

If you wish to ﬂ y using different rotor speeds and trim

set-ups, you will need to activate a series of “ﬂ ight

phases”, which can be called up via switches which

you assign.

The ﬁ rst step in this process is to call up the menu ...

»Phase setting« (page 79)

A u t o r o t

A u t o r o t 1 . 5 s +

P h a s e 1 N o r m a l 1 .0 s

P h a s e 2 H o v e r 1 . 0 s -

P h a s e 3 A e r o b a t 1

. 0 s -

N a m e S w i t c h t im e s t a t u s

S E L

… where the symbols in the “Status” column have the

following meaning:

„–“: no phase switch present

„+“: phase switch present

„“: currently active phase

However, before you set up the ﬂ ight phases you

should consider carefully whether you want to use in-

dividual switches to select them, or – more sensib-

ly – use one three-position switch (differential switch,

Order No. 4160.22), which enables you to select up

to three ﬂ ight phases in addition to auto-rotation. The

latter option is more logical and easier to remember.

In the menu you will ﬁ nd the “Autorot” line already se-

lected. If the auto-rotation phase is activated, it al-

ways has absolute priority over any other phases to

which you assign switches.

In this menu your ﬁ rst step is to assign unambiguous

names to phases 1 to 3; the names are taken from a

list. The phase name makes it easier to differentiate

the phases, and is later displayed on the screen in all

the phase-speciﬁ c menus.

Move to the next column and set the transition time

which you wish to apply when switching from one

phase into a new one. A setting of about one second

is usually ample.

Later this value can also be adjusted to suit your per-

sonal taste. Please note that there is always zero de-

lay when switching into the auto-rotation phase, who-

se “Autorot” name cannot be changed. However, you

can set the transition time which is to be used when

you switch from auto-rotation into another phase.

You now need to set up a method of switching bet-

ween different ﬂ ight phases, and the individual phase

switches or three-position switch are assigned as fol-

lows:

Phase switches are assigned in the menu ...

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