Top Flite TOPA0290 - Manual (Page 35)

❏
8.
Glue f
o
rmer
3A
to the front of
3B
.G
lue the die-cut
1/16" [1.6mm] plyw
ood doub
lers
2C
to both sides of
fo
rmer
2B
.
If y
ou will be installing retr
actab
le landing
gear
, dr
ill 9/64" [3.6mm] holes through the tw
o other
punchmar
ks f
or the nose steer
ing guide tubes
.
❏
9.
Use a str
aightedge and a fine-point ballpoint
pen to dr
a
w
a line across the punchmar
ks in one of
the die-cut 1/8" [3.2mm] plyw
ood
fusela
g
e
doub
ler
s
.
Enlarge the notches in the doub
ler bac
k to
the line b
y
cutting a
w
a
y
the un
used mater
ial.
This will
no
w be the
right fusela
g
e
doub
ler
.
❏
10.
Cut one of the shaped 1/4" x 3/8" x 36" [6.4 x
9.5 x 910mm] balsa
fusela
g
e
main spar
s
in half
.
Splice one of the halv
es onto another fuselage main
spar
.
Hint:
Pin the spars to the b
uilding board along
the border
line of the plan to mak
e sure the
y are
str
aight.
Mak
e
another assemb
ly the same w
a
y.
❏
11.
Pin the fuselage main spars to the b
uilding
board o
v
er the plan as sho
wn in the sk
etch.
Note that
the aft ends of the spars align with the front edge of F10B
.
The front of the spars should e
xtend slightly
past the front of the fire
w
all (f
or tr
imming later).
Also
note that the
T
-pins should go in at an angle so as not
to interf
ere with the fuselage doub
lers when the
y are
added later
.
❏
12.
Dr
ill 3/16" [4.8mm] holes through the
punchmar
ks in f
o
rm
ers 9B
, 8B
, 7B and 6B
.
D
rill 1/8"
[3.2mm] holes through the bottom tw
o punchmar
ks
on both sides of f
o
rmer 2B
.
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