Top Flite TOPA0290 - Manual (Page 39)

MOUNT
THE FIXED NOSE GEAR
Skip this section if installing retracts.
❏
1.
Glue the 1/4" x 3/4" x 1-3/8" [6.4 x 19 x 35mm]
plyw
ood
spacer
, centered, betw
een the 1/2" x 1-
9/16" x 2" [13 x 39.7 x 50mm] bass
w
ood
fix
ed nose
g
ear b
loc
ks
.
When doing so
, la
y the par
ts on a flat
surf
ace with the be
v
eled edges do
wn so the
y align.
❏
2.
Glue the die-cut 1/8" [3.2mm] plyw
ood
mounting plate
, centered, to the front, be
v
eled end
of the bass
w
ood b
loc
ks
.
Hint:
T
empor
ar
ily slide the
assemb
ly o
v
er the mounting r
ails on the fuselage to
center the mounting plate on the b
loc
ks
.
G
lue the
die-cut 1/8" [3.2mm] plyw
ood
co
ver plates
to the top
and bottom of the assemb
ly
.
Note:
The assemb
ly is
photog
raphed upside-do
wn because w
e
are still
w
o
rking on the fuselage while it is upside-do
wn.
Ref
er to this photo f
or the f
ollo
wing tw
o steps.
❏
3.
Dr
ill 3/32" [2.4mm] holes through the
punchmar
ks in the mounting plate
.
Fit the nose gear
wire with the steer
ing ar
m and collars to the nose
gear bear
ing.
Mount the assemb
ly to the mounting
plate assemb
ly with f
our #4 x 5/8" [16mm] scre
ws
.
(Y
ou can see all of the par
ts in the f
ollo
wing photo).
❏
4.
Slide the assemb
ly onto the mounting r
ails on
the fuselage until the center of the nose gear wire is 3-1/16" [1.6mm] from the fire
w
all.
❏
5.
Dr
ill 5/32" [4mm] holes all the w
a
y through the
nose gear mounting assemb
ly
.
T
empor
ar
ily mount
the assemb
ly to the r
ails with f
our 6-32 x 2" [50mm]
bolts
, #6 flat w
ashers and loc
k w
ashers and 6-32
b
lind n
uts as sho
wn on the plan.
The nose steering and thr
ottle will be hooked up
after the engine has been mounted.
MOUNT
THE RETRA
CT
ABLE NOSE GEAR
Skip this section if not b
u
ilding retracts.
❏
1.
Mount tw
o 0-80 ball link balls (not included) to
the steer
ing ar
m on the nose gear
.
❏
2.
Remo
v
e
the str
ut from the assemb
ly
.
Place the
nose gear mount on the r
ails
.
Retr
act the gear and
mak
e
sure the steer
ing ar
m will clear the ends of the
plyw
ood standoff pieces pre
viously glued to the
bottom of the r
ails
.
❏
3.
Dr
ill 7/64" [2.8mm] holes through the r
ails f
o
r
mounting the nose gear
.
Mount the nose gear with
four #6 x 1/2" [13mm] scre
ws
.
❏
4.
Mount the str
ut on the nose gear assemb
ly and
mount the axle and a nose wheel (not supplied) to the nose gear
.
Reminder:
A 2-1/2" [64mm] wheel is
specified, b
ut if using Robar
t wheels a 2-1/4" [57mm]
wheel is used as their wheels are slightly o
v
ersiz
e
.
Use a cutoff wheel to file a flat spot on the axle and cut it to the correct length.
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