Top Flite TOPA0290 - Manual (Page 29)

❏❏
9.
Prepare the
top
aileron skin b
y
cutting out the
corr
ugations
.
Cut the corr
ugation fillers
.
Note that the
fillers e
xtend from the front of the cutouts to
appro
ximately 1/8" [3mm] from rear of the cutouts
.Cut a
be
vel on the aft edge of the fillers to accommodate the fillers on the top skin, then glue the fillers into position. Also note the tw
o shor
ter corr
ugation fillers to
accommodate the control hor
n suppor
t.
T
est fit, then
glue the skin to the rest of the assemb
ly
.T
rim aileron to
the length sho
wn on the plan.
❏❏
10.
Mar
k a center
line along the aileron leading
edge and along the tr
ailing edge of the wing where
the aileron goes
.
Cut hinge slots in the wing and
aileron where sho
wn on the plan.
❏❏
11.
Be
v
el the leading edge of the aileron, then
test fit it to the wing with the hinges
.
❏❏
12.
Glue pieces of lefto
v
er 1/8" [3.2mm] die-cut
balsa to ends of the aileron and shape to fit.
❏
13.
Retur
n to step one and mak
e the
right
aileron
the same w
a
y.
B
U
ILD THE
W
ORKING
FLAPS
Build the left flap fir
st.
❏❏
1.
The same as y
ou ha
v
e
been doing all along,
cut out the corr
ugations from one of the die-cut 1/16"
[1.6mm] balsa
flap skins
.
❏❏
2.
Place the flap skin o
v
er the plan aligning the
corr
ugations
.
Use a ballpoint pen and a str
aightedge
to mar
k the location of the tr
ailing edge suppor
t all
the w
a
y across
.
❏❏
3.
Mar
k the locations of the flap r
ibs
, then cut
the tr
ailing edge suppor
t from a 1/8" x 1/4" x 30" [3.2
x 6.4 x 760mm] balsa stic
k.
Note:
Since the r
ight
wing plan sho
ws the fix
ed flap v
ersion, the locations
of the r
ight flap r
ibs are indicated b
y
the small
dashed lines
.
G
lue the tr
ailing edge suppor
t to the
skin along the line mar
k
ed in the pre
vious step
.
❏❏
4.
Glue on the die-cut 1/16" [1.6mm] plyw
ood
flap ribs
.
C
ut the
flap sub leading edg
e
from a
3/16" x 3/8" x 18" [4.8 x 9.5 x 460mm] balsa stic
k,
then slip it under the notches in the flap r
ibs and glue
it into position with thin CA.
❏❏
5.
Cut off the flap skin along the front of the flap
sub leading edge
.
Cut the corr
ugation filler str
ips
,
then glue them into position.
❏❏
6.
T
rim the tr
ailing edge of the flap skin as
necessar
y until the total width of the flap is 1-5/8"
[42mm], then be
v
e
l the tr
ailing edge of the skin to
match the angle of the r
ibs
.
❏❏
7.
T
rim 3/4" [19mm] from the front and 3/16"
[4.8mm] from the rear of another flap skin.
Cut
eighteen 1-1/8" [3.2mm] long corr
ugation fillers and
glue them to the inside of the skin so the front is e
v
en
with the front of the skin.
❏❏
8.
The same as w
as done with the corr
ugation filler
str
ips f
o
r the top aileron skin, be
vel the aft end of the
corr
ugation filler str
ips on the top flap skin.
T
est fit the
skin to the flap assemb
ly
.
Mak
e adjustments where
necessar
y, then glue the top flap skin into position.
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