the plastic control horn backplate to secure the control horn in
place. Cut-off the excess bolt ends and file smooth.
❑
3) The rudder control horn is now installed onto the bottom
right side of the rudder. As shown, the control horn is positioned
1-1/8" up from the bottom leading edge of the rudder, with the four
R/C link holes in line with the leading edge of the rudder. Hold the
horn in this position and use a pencil to mark the two mounting
hole locations onto the rudder. Again, use a #46 bit to drill two
mounting holes through the rudder at the marks just made. Use
the two remaining M2 x 20 mm bolts and the plastic control horn
backplate to secure the horn in place. Cut off the excess bolt ends
and file smooth.
❑
4) The elevators are now hinged to the horizontal stabilizer.
The hinging method is the same as described earlier for the
ailerons. Use card wedges to center the hinges and remember to
use a fine-tip applicator on your thin CA bottle to keep from getting
any excess glue on the covering.
❑
5) The rudder can now be hinged in place to the vertical fin
and fuselage. Note that the bottom hinge slot entry location in the
tailpost of the fuselage should be opened a little more to accept the
tail wheel bearing diameter. As we did with the rudder, use a short
length of scrap wire to lightly force this area open, to accept about
one half of the bearing diameter when the rudder is fully in place.
We also found that the bottom hinge slot needs to be opened up a
little more to accept the thickness of the brass hinge. This can be
easily done with a #11 blade or even a #27 X-acto saw blade.
Using the two remaining CA hinges, trial fit the rudder fully in place,
making sure it has free movement.
Make any adjustments
necessary to achieve this.
Once satisfied with the fit and
movement, remove the rudder, leaving the CA hinges in the
vertical fin. Carefully apply a thin coat of Vasoline
®
to the tail wheel
bearing area to protect it from excess glue. The brass tail wheel
hinge is glued in place using 15-minute epoxy. First, place two of
the card wedges into the center CA hinge slots. Next, lightly coat
both sides of the brass hinge half with epoxy glue. Use a piece of
business card to now work some epoxy glue into the fuselage
hinge slot, cleaning up any excess. Now, insert the brass hinge
half partially into its slot in the fuselage and engage the two CA
hinges into their slots in the rudder. Press the rudder in place to
the fuselage and fin.
The two rudder CA hinges can now be glued in place using the
same method described earlier during the hinging of the ailerons.
Allow time for the CA glue to fully wick across the surface of the
HINGING THE CONTROL SURFACES:
The following steps will require the following parts:
❑
Rudder & elevator with CA hinges - 6 hinges total
❑
Bag #8 - Tail Wheel assembly
❑
Bag #10 - 2 ea.
Control horns
2 ea.
Control horn backing plates
2 ea.
Pushrod connectors
2 ea.
Connector keepers
4 ea.
M2 x 20 mm bolts
❑
1) The steerable tail wheel assembly is now installed into the
bottom leading edge of the rudder. Note that this assembly is also
the bottom hinge for the rudder. Because of this, a little extra
clearance must be made to accept the brass tail wheel bearing.
The rudder has been factory slotted for the brass hinge. The
leading edge of this slot should be opened up a little more to
accept at least one half of the bearing. We did this with a scrap
piece of wire that was about the diameter of the bearing. Simply
press this wire firmly into the slot area, forcing it to open a bit more.
Trial-fit the tail wheel assembly in place to check the bearing fit.
Once the bearing fits freely, the tail wheel assembly/hinge can be
glued in place to the rudder. We suggest first coating the bearing
area only with some Vasoline
®
to protect it from accepting glue and
locking up. Use 15-minute epoxy to glue the tail wheel assembly
and hinge into the bottom of the rudder. Carefully remove any
excess glue and allow the glue to fully cure.
❑
2) The elevator control horn is now installed onto the bottom of
the left elevator half. As shown, the center of the control horn is
located 1-3/16" outboard of the inner elevator trim line. In top view,
locate the control horn at this position, with its four vertical R/C link
holes in line with the leading edge. Hold the control horn in this
position and mark its two mounting holes onto the surface of the
elevator. Use a #46 (.081" dia.) bit to drill two holes through the
elevator at the marks just made. Use two M2 x 20 mm bolts and
11