17
Clamp Wing Panel:
The lite-ply scraps prevent the clamps from damaging the wing and
also force the top and bottom surfaces to align. Be sure to put one clamp
directly above the wing joint line to assure the surfaces will be flush. Set the
wing aside on the flat surface to cure. You may want to evenly support the
underneath side of each wing tip to help prevent the wing panels from droop-
ing or separating. If you have used the rubberbands and clamps properly
this should not be necessary, but is a good safety precaution. After the
expoxy has cured, check the fit of the assembled wing in the fuselage saddle.
Step 5: Tail Surface Assembly:
Gather together the Vertical and Horizontal tail pieces, 30-minute epoxy, epoxy brush,
T-pins, scale/ruler, Elevator Wire “U-Horn”, felt tip pen, cloth tape measure.
Mark the HS at the Fuselage Edge:
Using a felt tip pen, mark the HS at four points at the intersection of
the HS and fuselage at the Trailing and Leading edges. Remove the HS (If
the OraCover is not already removed in the mounting area ..... using a
straight edge and a razor blade, score a line in the OraCover about 1/16”
inside the marks you made above. Do this on top and bottom. DO NOT
CUT INTO THE WOOD as it will weaken the HS. Remove the OraCover
between the lines you just made.) Do not destroy the alignment marks you
made above.
Insert Elevator Connecting “U-Horn”:
Insert the elevator connection U-horn (Wire) into the fuselage HS
slot. It should be in the half-circle slots at the rear of the HS slot.
Test Fit and Align Horizontal Stabilizer:
Slide the horizontal stabilizer (HS) into the HS slot in the fuselage
and check for fit and alignment. In particular, check that it is horizontal.
Measure the trailing edge (TE) from the fuselage to the outer edge as
shown and balance each side.
Measure the leading edge (LE) from the fuselage to the corner as
shown. Measure both sides and balance. Iteratively, measure the LE and
TE to perfectly balance each side. This should be sufficient, however, you
may refer to “Supplemental figure 2” for an alternate or additional mea-
surement method to set the HS in place. Check the HS alignment and VS
orthongonality with the wing in place. Adjust the HS & VS alignment to the
wing and fuselage as shown in figures 2 & 3 on page 44.
NOTE: The Pull-Pull rudder cable is in place. It is very convenient
to do it now, although it can be done later as well. Hold the fuselage
vertical with the nose down, feed one end of the cable through the hole
provided and let it fall to the wing saddle area. Start with the right-side
hole in the fuselage tail. Make sure the cable crosses in the fuselage
interior so that the cable from the right hole goes the left servo arm. Se-
cure the cable in the saddle area to the fuselage side opposite the side
from which it was fed through the hole. Use masking tape to secure it to
the side. Repeat process from the other hole. Leave the cable “looped” at
the tail as shown to prevent it from accidently being pulled into the fuse-
lage and lost. Do not cut the rudder cable at the tail at this time.
