Nacelle Installation - Hangar 9 Twin Otter ARF Assembly Manual

Step 16
Perform steps 2 through 15 to install the right-hand
flap servo. Note that the servo position on the hatch
is different for the right-hand side. When performing
step 5 position the servo 1/4 inch from the edge of the
hatch rather than 1/8 inch as for the left-hand side.
Note: The pushrod length provided will place the
flaps in the mid-position with the servo centered. This
will ensure correct operation throughout the range of
motion.
16

Nacelle Installation

Parts Required
Wing panels (left and right)
Nacelles (left and right)
Tools Required
Low-tack tape 30-minute epoxy
Mixing sticks Mixing cups
Paper towels Felt-tipped pen
Canopy glue 2 3/4-inch wooden dowel
Step 1
Identify the left and right-hand nacelles. The larger
hole on the lower surface of the nacelle locates to
the inboard side to receive the wing strut. Label each
nacelle and wing panel with low-tack tape to prevent
installing them incorrectly.
Step 2
Remove the hatch and cowl from the nacelle. Trial
fit the nacelle and check that it will seat fully against
the wing. If there is resistance to the nacelle fitting
properly check that there is not a buildup of fiberglass
between each of the nacelle sides and the motor box.
Use a flat file to remove the excess if necessary.
Step 3
Mix some 30-minute epoxy and apply it to each of the
plywood ribs on the wing.
Twin Otter ARF Assembly Manual