Jumper 25
Instruction Man u al
14
5) Slide the vertical stabilizer back in
place. Using a triangle, check to en sure that
the ver ti cal sta bi liz er is aligned 90º to the
hor i zon tal sta bi liz er.
Horizontal
Stabilizer
6) When you are sure that everything is
aligned correctly, mix up a gen er ous amount
of Flash 30 Minute Ep oxy. Apply a thin layer
to the mount ing slot in the top of the fu se lage
and to the sides and bottom of the ver ti cal
sta bi liz er mounting area. Ap ply epoxy to the
bot tom and top edges of the fi ller block and
to the lower hinge also. Set the sta bi liz er in
place and re align. Dou ble check all of your
mea sure ments once more be fore the ep oxy
cures. Hold the sta bi liz er in place with T-pins or
mask ing tape and re move any ex cess ep oxy
using a paper towel and rub bing al co hol. Al low
the ep oxy to fully cure be fore pro ceed ing.
CONTROL HORN INSTALLTION
1) Locate the two nylon control horns,
three nylon control horn backplates and six 2
x 15mm machine screws.
2) Position the two elevator horns on the
bottom side of each elevator, 1 - 1/8" out from
the sides of the fuselage. The clevis at tach-
ment holes should be positioned over the
hinge line.
Mounting Screws
Mounting Plate
3) Using a modeling knife, remove the cov-
ering from over the two precut pushrod slots,
one on left side of the fuselage and one on the
right side of the fu se lage, under the forward
half of the horizontal sta bi liz er.
4) Using a 5/64" drill bit and the control
horns as a guide, drill the mounting holes
through the el e va tor halves.
5) Mount the control horns by inserting the
screws through the control horn bases and eleva-
tor halves, then into the mounting backplates. Do
Not overtighten the screws or the backplates may
crush the wood.
6) Position the rudder control horn on the
left side of the airplane 3/4" up from the bot-
tom of the rudder. Mount the control horn
parallel with the hor i zon tal stabilizer, not in-
line with the rudder hinge line.
7) Install the rudder control horn using the
same method as with the el e va tor control
horns.