Top Flite TOPA0290 - Manual (Page 16)

❏
8.
Use 320-g
rit or 400-g
rit sandpaper to roughen
the
outside
of the 11/32"x 6"[8.7 x 150mm] br
ass
tube and the
inside
and
outside
of the 3/8"x 1-
1/2"[9.5 x 38mm] br
ass tube so glue will adhere
.
❏
9.
Use 30-min
ute epo
xy to glue the do
w
el spar
and tubes together—both tubes should be centered on the do
w
el.
F
rom no
w on this assemb
ly will be
ref
erred to as the
stab spar
.
Note
:
It ma
y be necessar
y to sand do
wn the do
w
e
l
to get it to fit into the 11/32" [8.7mm] br
ass tub
.
❏
10.
Enlarge the holes in the n
ylon s
w
iv
el cle
vis
with a #40 dr
ill.
❏
11.
Slide the s
w
iv
el cle
vis and tw
o 3/32"[2.4mm]
wheel collars onto the 4-40 control rod.
(The set
scre
ws will be installed and tightened when finalizing
the r
adio setup after the model has been completed.)
Slide the bear
ings o
v
er the stab spar
.
Fit the r
ibs on
the pushrod and the stab spar
.W
or
king o
v
er the stab
plan, fit the assemb
ly to the die-cut 3/32"[2.4mm]
balsa
sub leading edg
e
and the die-cut
3/32"[2.4mm] balsa
sub trailing edg
e
.
Join the rest
of the r
ibs to the assemb
ly
.
❏
12.
Hold the stab assemb
ly to the b
uilding board
with
T
-pins
.
G
lue the r
ibs to the sub leading edge and
to the sub tr
ailing edge
.
❏
13.
Securely glue the stab spar and the stabiliz
er
control rod to the r
ibs
.
❏
14.
Use a r
a
z
o
r plane f
ollo
w
ed b
y
a bar sander to
shape the top of the sub leading and tr
ailing edges
e
v
en with the tops of the r
ibs to accommodate the
sheeting.
Mak
e
sure none of the
T-pins are in the w
a
y.
❏
15.
Sand the tr
ailing edge of the plyw
ood S1 r
ibs
to accommodate the balsa stab tr
ailing edge
.
❏
16.
Remo
v
e
an
y
T
-pins from the stabiliz
er
assemb
ly that will be concealed under the stab skin
when y
ou glue it into position.
Glue one of the stab
skins to the top of the stab
.
Thic
k or medium CA
could be used, b
ut aliphatic resin is recommended
because it will allo
w more w
o
rking time f
o
r
positioning the skin.
Use
T
-pins and w
eights to
securely hold the skin do
wn until the glue dr
ies
.
❏
17.
Remo
v
e
the stab from the b
uilding board.
The
same as y
ou did with the v
e
rtical stabiliz
er
, tr
im the
bottom of the sub tr
ailing edge and the bottom of the
sub leading edge e
v
en with the r
ibs to accommodate
the bottom sheeting.
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