Installing The Horizontal Stabilizer - Vmar J3.PIPER GUB Assembly & Operation Manual

HORIZONTAL STABILIZER
Check the fit
of
the
horizontal stabilZer in
ibs
sbt
Make sure the hori-
zontal stabilizer
is
square and centered to the
fuselage by
taking
measurements as
shown in
pictures
6A, 68 and
6C.
Do
not glue anything
yet
6A- Trial
fit
the
horizor*d
sl*tur
in
its slot
Equal
distance
68- Alignment of horizontal
stabiliar
top view
6G-
Alignment
back
view
INSTALLING THE HORIZONTAL STABILIZER
Step 7.1 With the
horizontal stabil2er-
aligned correctly, mark
the
shape of
the fuselage on the top & bottom of the
horizontal stabilizer. Using
a
water
sol-
uble
non-permanent
felt-tip pen
as
shown
here.
Step 7.2 Now
remove the
horizontal
stabilizer. Using a sharp
knife & a ruler
CAREFULLY
cut 1/B' (3 mm)
inside
the marked lines & remove the
cover-
ing on the
top &
bottom of the
horizon-
tal
stabilizer
as
illustrated. Make
sure
you only cut the film
& not the wood,
otherwise the horizontal stabilizer
will
be
severely weakened &
fail. USA CA
TO FILL AND
REPAIR
ANY
CUT
MARKS
IN THE WOOD.
7C- Marked lines on horizontal stab
7E-
Remove
the
covering
from
top
surface
Step 7.3
Now apply sufficient epoxy to
the top and
bottom of
the
horizontal stabilizer and
horizontal slot. Use 30 minute
epoxy to ensure a strong bond and give yourself
plenty of working
time.
See ZH & 7l
Step 7.4
Insert the horizontal stabilizer in
its
slot
in the
fuselage
and re-check the alignment
as
in
Stage 6. See 7J &
68
Step 7.5 Excess epoxy
should be cleaned off with a rag or tissue
before it cures. See
7K
78- ...and the bottom
bilizer...
- Exactly the
same unde