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Front End:
Nose gear door servo: The position of the nose gear door servo is very critical, because there is
not much room where it's installed. The linkage has to stay out of the way for the strut wheel, and
the servo body must not contact the carbon tube construction to hold nose gear and batteries.
Also the linkage must be very short, so a certain precision and care needs to be applied.
The servo arm should be 20-25mm (3/4" - 1"). The door is already hinged and the control horn is
integrated in the front hinge. To do this job well, you will need a servo tester, in order to operate
the servo, look at the geometry and the movement and make sure that nothing is binding.
When the door is closed, the servo arm should be as much as possible in line with the linkage. It
will not be 100% possible due to geometrical constraints, but as much as possible is desired.
deflection of approx. 50 mm (2") right and left,
measured at the root. The linkage should not
hit or bind with the fin tube. You should set the
neutral position of the servo arm not 90 deg to
the servo, but 90 degree to the linkage, which
is in an angle. That means, the servo arm is
pointing slightly forward when the rudder is
neutral.
Finally screw the servo permanently in,
reinforce the linkage with a piece of 5x1 mm
carbon tube and mount it just like you've done
at the other control surfaces.
Locate the position in the root rib area where
to install the socket for the servo lead and
route the servo wire accordingly.
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