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way to set the height of the swash plate initially
There is quite a bit of
misunderstanding about just how to get the right position for the swash
plate when first doing the mechanical setup of any collective pitch
helicopter such as the Esky Belt CP and others
One trick that I have
found pretty accurate is as follows.
Once you have done the
basic servo horn mechanical setup, disconnect
the motor of the helicopter if you have not already done so,
and then set the throttle to maximum, and put it into IDLE UP MODE if
you are using the Esky stock Transmitter (TX) - YES, REALLY !!
Next, Turn the pitch
control knob on the TX (if you have one) fully clockwise to set it
to maximum pitch.
Now check the position
of the mixer arms hub, which slides up and down the mainshaft with the
swash plate as you change throttle/pitch settings, and you will see that
it will have been pushed up towards the head itself.
The picture below (its a
different rotor head, but the principle is just the same) shows the
swash plate all the way down at zero throttle. Note the two guide
pins above the mixer arms are fully visible.
Disconnect the three
connecting rods that go from the servos to the swash plate, and then
manually position the mixer hub as far up as it will go without touching
the head block itself by pushing the swash plate slowly upwards.
Make sure you keep the swash plate level and keep the mixer hub just
about 1mm below the head hub itself, so that it does not actually bind
The picture below shows
the swash plate in the fully UP position. You can see quite
clearly that those two guide pins are now sticking down through the
mixer arm hub. You may also be able to see that the hub is just very
slightly BELOW the head assembly itself.
Finally, adjust the
length of the connecting rods from the servos to the swash plate so that
they keep the swash plate in that position. (Check to see if it is
Now check the throttle
movement to see if it slides up and down nice and smoothly and does not
bind at the top.
That's all there is to
it, your swash plate will now be in almost the best possible position,
although in your final pitch range setup, you may find that you need to
adjust it slightly.
The picture above shows the full throttle
position a little better, with just a small gap above the hub
through which you can still see the two guide pins, although the
majority of the guide pins are now sticking down BELOW the hub.
this helps you get the pitch range set more easily