17
BOOMERANG 40.
Instruction Manual.
CONTROL HORN INSTALLATION.
1. Locate the two nylon control horns, two
nylon control horn backplates and four M2 x
15mm machine screws.
(2)2mm x 15mm.
4. Slide the vertical stabilizer back in
place. Using a triangle, check to ensure that
the vertical stabilizer is aligned 90º to the hori-
zontal stabilizer.
5. When you are sure that everything is
aligned correctly, mix up a generous amount
of Flash 30 Minute Epoxy. Apply a thin layer to
the mounting slot in the top of the fuselage and
to the sides and bottom of the vertical stabi-
lizer mounting area. Apply epoxy to the bot-
tom and top edges of the filler block and to the
lower hinge also. Set the stabilizer in place
and realign. Double check all of your measure-
ments once more before the epoxy cures. Hold
the stabilizer in place with T-pins or masking
tape and remove any excess epoxy using a
paper towel and rubbing alcohol. Allow the ep-
oxy to fully cure before proceeding.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
4. Install the rudder control horn using the
same method as with the elevator control
horns.
Rudder
control horn.
Elevator control horn.
Control Horn.
Mounting Screws.
Mounting Plate.
2. Position the elevator horn on the bottom
side of elevator. The clevis attachment holes
should be positioned over the hinge line.
3. Using a 1.5mm drill bit and the control
horns as a guide, drill the mounting holes
through the elevator halves.
ELEVATOR PUSHROD HORN
INSTALLATION.
Elevator pushrod.
Control horn.
