Hangar 9 Twist 3D .40 Assembly Manual page 8

Section 2: Installing the Horizontal Stabilizer
Step 4
Use a felt-tipped pen to trace the outline of the
fuselage on the top and bottom of the stab.
Step 5
Remove the stab and use a hobby knife with a
brand new blade to remove the covering 1/16"
inside the lines just drawn.
8
Note: DO NOT cut into the underlying wood.
Let the knife "float" across the covering.
Cutting into the wood will weaken the
stabilizer and may cause it to fail in flight.
Hint: You can use a soldering iron instead
of a hobby knife to remove the covering.
Doing so will eliminate accidentally cutting
into the stabilizer.
Step 6
Place the elevator joiner wire into the slot for the
stab. Reposition the stab into the fuselage. It may be
necessary to trim the opening at the rear to allow for
clearance for the joiner wire.
Hint: Use a little rubbing alcohol and a paper
towel to remove the felt-tipped marker lines
once they are no longer needed.