Section 4: Hinging The Rudder And Elevator - Hangar 9 ULTRA aspire Instruction Manual

Section 4: Hinging the Rudder and Elevator

Parts Needed
• Fuselage
• Horizontal stabilizer with elevator attached
• Vertical stabilizer with rudder attached
Note: The control surfaces, elevator and rudder are
pre-hinged with the hinges installed, but the hinges
are not glued in place. It's very important that you
properly adhere the hinges in place per the steps that
follow using high-quality thin CA glue.
Step 1. Locate the horizontal stabilizer and elevator that you
attached to the fuselage. The hinges are not glued in place, so
you will have to use thin CA glue to attach them permanently. A
typical hinge is shown below. Note that the construction allows
you to determine the center of the hinge easily. There is also a
slot that enhances the wicking action when CA is applied.
Step 2. Remove the elevator from the horizontal stabilizer.
Check each hinge to make sure it's centered, then re-install the
elevator onto the horizontal stabilizer.
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Tools and Adhesives Needed
• Thin CA glue • Drill
• CA debonder • Drill bit:
• Paper towels • Medium Phillips
• Felt tipped pen
or pencil
Step 3. With the elevator re-installed, check the alignment to
make sure it's centered on the horizontal stabilizer. Deflect the
elevator and completely saturate each hinge with thin CA glue.
The elevator's front surface should lightly contact the horizontal
stabilizer during this procedure. Ideally, when the hinges are
glued in place, a 1 / " gap or less will be maintained throughout
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the length of the elevator. The hinges are constructed of a spe-
cial material that allows the CA to wick or penetrate and distrib-
ute throughout each of the hinges, securely bonding them to the
wood structure.
Step 4. Turn the fuselage over and deflect the elevator in the
opposite direction and from the opposite side. Apply thin CA
glue to each hinge, making sure the CA penetrates into both the
elevator and horizontal stabilizer.
1 / "
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screwdriver