Great Planes 27% Extra 330S ARF - GPMA1413 - Manual (Page 14)

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stab, add any weight that may have been necessary to align
the stab with the wing, wipe away more epoxy that may have
dripped out, check the alignment once more, then do not
disturb the model until the epoxy has hardened.
Hinge the Elevators & Rudder
Hinging the elevators and rudder is done the same
as you did the ailerons, but we’ll give you a brief run-
through anyway.
❏
1. If you haven’t yet done so, remove the wings from
the fuselage.
❏
2. Test fi t both elevators to the stab and the rudder to the
vertical stab (fi n) with the hinges. Make sure the hinges are
centered and make any adjustments necessary.
❏
3. Remove the elevators and rudder and take out all the
hinges. The same way you did for the aileron hinges, add a
small drop of oil to the pivot point of each hinge.
❏
4. Permanently hinge the elevators to the stab and the rudder
to the fi n–don’t forget to use separate batches of 30-minute
epoxy for each control surface–otherwise you may run out of
working time with the epoxy.
❏
5. After the epoxy on all the hinges has hardened, remove
the masking tape and rapidly move the surfaces to “break”
any epoxy from the hinge pins and get the surfaces moving
freely again.
If mounting the rudder servos inside the fuselage with the
pull/pull cables, skip ahead to “Hook up the Elevators.”
(Remember, gas engine installations should use the aft,
external rudder servo location.)
Hook Up the External Rudder Servos
❏
1. If mounting the receiver to the forward servo tray,
connect 36" [910mm] servo extension wires to the rudder
servos. If mounting the receiver to the aft servo tray,
connect 24" [610mm] servo extension wires to the rudder
servos. Later, the rudder servos will be linked with a “Y”
connector and connected to one channel in the receiver. If
not yet certain where you will be mounting the receiver, you
may connect the extensions later.
❏
2. The same as was done for the servo extension wires on
the aileron servos, secure the connections with 3" [75mm]
pieces of heat-shrink tubing cut in half.
Refer to this photo while hooking up the external rudder
servos and elevator servos.
❏
3. Guide the rudder servo wires down through the fuselage
and mount the servos. Note that the servo output shafts on
both rudder servos are toward the aft end of the fuselage.
❏
4. Select the plastic servo arm adapters for the servos
you will be using – “F” is for Futaba, “H” is for Hitec and “A” is
for Airtronics and JR.
❏
5. Same as the aileron servos, use the 3mm screws
supplied with your radio system to mount the servo wheels/
arms. Drill out the hole in the metal servo arms and plastic
adapters included with this kit with a #32 (.116" [3mm]) drill.
❏
6. Temporarily mount the servo arms to the servos using
the appropriate servo adapters and servo screws.
❏
7. Make two 4-3/8" [111mm] rudder pushrods from two
4-40 x 12" [300mm] pushrods. Use the same techniques
described for making the aileron pushrods to solder large
metal clevises to the ends of the rudder pushrods and make
sure the clevises on the threaded end of the pushrods are
the threaded kind.
❏
8. Trim the bottom hole from two control horns as shown.
❏
9. Connect the rudder pushrods to the rudder servo arms,
then connect the rudder horns to the other end of the rudder