8
PARTS REQUIRED
VERTICAL STABILIZER
MOUNTING
ALIGN THE VERTICAL STABILIZER
o
{1} Vertical Stabilizer w/Rudder and Hinges
o
1) Using a modeling knife, carefully re-
move the covering from over the stabilizer slot
precut in the top rear of the fuselage.
o
2) Remove the rudder from the stabilizer.
Slide the stabilizer into the slot in the top of
the fuselage. The rear edge of the stabilizer
should be even with the rear edge of the fuse-
lage and it should be firmly pushed down com-
pletely into the slot.
o
3) Using a pen, draw a line on each side
of the vertical stabilizer where it meets the top
of the fuselage.
o
4) Remove the stabilizer. Using a mod-
eling knife, remove the covering from below
the lines you drew. Also remove the cover-
ing from the bottom edge of the stabilizer. See
photo # 7 below.
Photo # 7
When cutting through the covering to re-
move it, cut with only enough pressure
to only cut through the covering itself. Cut-
ting into the balsa structure may weaken it.
o
5) Set the vertical stabilizer back in place.
Using a triangle, check to ensure that the ver-
tical stabilizer is aligned 90º to the horizontal
stabilizer. See figure # 4 below.
Figure # 4
MOUNTING THE VERTICAL STABILIZER
o
6) When you are sure that everything is
aligned correctly, mix up a generous amount
of Kwik Bond 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 stabilizer mounting area. Set the
stabilizer in place and realign. Double check
all of your measurements once more before
the epoxy cures. Hold the stabilizer in place
with T-pins or masking tape and remove any
excess epoxy using paper towels and rubbing
alcohol. Allow the epoxy to fully cure before
proceeding.
PARTS REQUIRED
TOP WING MOUNTING
ALIGN THE TOP WING
o
{1} Top Wing w/Ailerons & Hinges
o
{1} Wing Cabane Shim (D-31)
o
{2} Outboard Interplane Struts
o
{4} 3mm x 16mm Machine Screws
o
{8} 3mm Flat Washers
o
{4} 3mm Blind Nuts
o
{1} 3mm x 50mm Machine Screw
o
{1} 3mm x 35mm Machine Screw
Set-up is extremely important in any air-
plane. However, wing incidence is criti-
cal in a biplane to achieve proper flight per-
formance. Incidence is the angle the flying
surfaces flow through the air. The Ultimate
should be set with the stabilizer at 0º, the lower
wing at 0º, and the top wing at 0º or -1º inci-
dence. The following installation procedures
explain how to achieve proper initial setup.
See figure # 5 below.
Figure # 5
o
1) With the bottom wing installed, set the
airplane upright in an airplane stand.
We highly recommend using a stand.
They can be purchased separately or made
yourself using items found around your shop.
REMOVE
COVERING
90º
0º
0º
0º or -1º
