D 1. Place the stab and elevators over their locations on
the plan and lightly mark the hinge locations on the TE of
the stab and LE of the elevators.
D 2. Mark the centerline of the hinges on the stab's TE
and elevator's LE using the following centerline method.
D 4. Cut the hinges for the elevators and rudder from the
supplied 2" x 9" hinge material. Use the hinge drawing
on the fuse plan as a guide. Trim off the corners and
temporarily join the elevators to the stabs with the hinges,
adjusting any hinge slots if necessary. Do not glue in the
hinges until you are instructed to do so.
D 5. Return to step 1 and use the same procedure to
hinge the rudder and fin.
HOW TO MARK A CENTERLINE
It's important that the hinges are centered and parallel to
the part you are hinging. The best way to start is by
accurately marking the hinge centerline.
D 1. Refer to the Expert Tip that follows and shape the LE
of the elevators and rudder to a "V" shape as shown on
the plans.
A. Lay the stab and a ballpoint pen on a flat surface.
Mark a "test line" on the trailing edge of the stab.
B. Flip the stab over and mark another line in the same
location as the first. If you see only one line, then it is
on center. Proceed and mark the centerline at each
hinge location. If you see two lines, use playing cards
or business cards to adjust the height of the pen until
you can mark the centerline.
C. Use the same technique to mark the centerline along
the entire length of both elevators.
HOW TO BEVEL THE LEADING EDGE
A. Place the leading edge of one of the elevators on your
work surface and use your ballpoint pen to mark a
"bevel to" line on both sides about 1/8" high.
D 3. Cut the hinge slots in the elevator and stab using a
#11 blade. Begin by carefully cutting a very shallow slit at
the hinge location to accurately establish the hinge slot.
Make three or four more cuts, going a little deeper each
time. As you cut, slide the knife from side to side until the
slot has reached the proper depth and width for the hinge.
B. Using the bevel to lines and the centerline as a guide,
make the "V" on the leading edge of the elevators with
a razor plane or your bar sander.
D 2. Use the same procedure to bevel the leading edge of
the rudder.
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