Engine and fuel system – Top Flite TOPA1020 User Manual
Page 10

❏
2.
Locate the g
roo
v
e
f
or the tail gear wire on the
underside of the fuselage and tr
im the co
v
e
ring a
w
a
y.
The hole at the front of the g
roo
v
e
f
or the tail gear
wire is appro
ximately 9-1/2" [241 mm] from the aft
end of the fuselage
.
Inser
t the tail wire into the g
roo
v
e
and secure it with a n
ylon str
ap and tw
o 2 x 10 mm
self-tapping scre
ws
.
ENGINE AND FUEL SYSTEM
Mount the Engine
There are tw
o engine mounting templates at the bac
k
of this man
ual f
or the SuperTig
re
®
.51 C/L engine and
the O
.S
.
Max .40 LA-S engine
.
If y
ou are not using
either of these engines
, y
ou will need to mak
e y
our o
w
n
mounting template based on the siz
e
of y
our engine
.
❏
1.
Cut out the template from the bac
k of this man
ual
that matches y
our engine
.
Align the dashed lines on
the template with the cross-hairs on the fire
w
all and
tape the template in place
.
Use a
T-
pin or a small dr
ill
bit to tr
ansf
er the location of the f
our mounting holes to
the fire
w
a
ll.
❏
2.
Remo
ve
the template and dr
ill the mounting holes
with a 7/32" [5.6 mm] dr
ill bit.
Cut the sides from tw
o
4mm b
lind n
uts as sho
wn.
Install f
our 4 mm b
lind n
u
ts
into the bac
k of the holes
.
D
ra
w the b
lind n
uts tight into
the fire
w
all b
y
threading a 4 x 20 mm scre
w and 4 mm
w
asher through the engine mount and fire
w
all into the
b
lind n
uts and tightening the scre
w
.
❏
3.
Install the engine mount halv
es in
v
e
rt
ed to the
fire
w
all using f
our 4 x 20 mm scre
w
s
, f
our 4 mm
w
ashers
, and f
our 4 mm loc
k
w
ashers
.
❏
4.
P
osition the engine so that the dr
iv
e w
asher is
4-1/8" [105 mm] from the fire
w
a
ll.
Mar
k the positions of
the engine mounting holes onto the mounting r
a
ils (w
e
used a Great Planes Dead Center
™
Engine Mount
Hole Locator
, GPMR8130) and dr
ill the holes with a
1/8" [3.2 mm] dr
ill bit.
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