Use this photo for the next four steps.
❏
F8. Mount the nylon
nose gear bearing
to the
nose plate with four 4-40 x 1/2” [12.7mm] screws.
Enlarge the holes in the nose gear bearing for the
nose gear strut with a #10 drill bit (if you don’t have
a numbered drill set, an 13/64” [5.16mm] drill bit will
work too).
❏
F9. Enlarge the outer hole in the black, nylon
steering arm
with a # 41 drill bit or a hobby knife.
Mount the heavy-duty
Screw-Lock connector
to the
steering arm with the
one-way star washer
. Mount
the 3/16” [4.8mm]
nose gear wire
to the nose gear
bearing with a 3/16” [4.8mm]
wheel collar
and
set
screw
. Mount the steering arm and a 6-32 x 1/4”
[6.4mm] socket head cap screw as shown on the
plan. Notice that the steering arm is slightly off center
when the nose gear is centered. See the photo
above at step 8.
❏
F10. Temporarily fit your nose steering servo and tray
on the forward servo rails. Fit a servo arm to your servo.
❏
F11. Thread a 4-40
hex nut
followed by a 4-40
metal
clevis
onto a .095 x 12” [304.8mm]
nose steering
pushrod
. Connect the clevis to the servo. Connect the
other end of the pushrod to the screw-lock connector in
the steering arm. Cut the pushrod about 1/4” [6.4mm]
past the connector. Make a slight bend in the pushrod
near the screw-lock connector so it aligns with the hole
in the connector. Temporarily secure the pushrod to the
connector with a
set screw
.
❏
F12. Securely glue the nose steering servo tray to the
servo rails. Make sure your servo is centered, and
tighten up the 4-40 jam nut on the clevis with a drop of
thread lock for extra security. File
small
flat spots in the
nose gear to securely hold the set screws.
That was easy, wasn’t it? Now hook up the throttle.
It’s just as easy! Skip to
Hook Up The Throttle
on
page 49.
❏
R3. Temporarily place the landing gear rails
through the firewall and into the notches in F2. The
rails should be even with the rear face of F2. The
spacers should be on the bottom of the rails and the
marks you made should be on the top of the rails
(remember
up is always toward the top of the fuse
even if it is upside-down). Position the nose gear on
the rails and mark the location on the firewall where
the air fitting on the back of the air cylinder contacts
it. Drill a 3/16” [4.8mm] hole at this point
❏
R4. Use 30-minute epoxy to glue the rails to the
firewall and former F2, and the die-cut 1/8”
[3.2mm] plywood landing gear braces to the rails
and the firewall.
❏
R2. Glue one 1/4” x 9/16” x 2-1/4” [6.4 x 14.3 x
57.2mm] plywood
rail spacer
and one 1/8” x
9/16” x 2-1/4” [3.2 x 14.3 x 57.2mm] plywood
rail
spacer
on the end of both rails that you made the
mark on, but on the other side of the rail.
❏
R1. If you’re using the Robart 631 nose gear
retract, mark a line 7-7/8” [200mm] from one end
of both 1/4” x 9/16” x 9” [6.4 x 14.3 x 228.6mm]
plywood
landing gear rails
. This will position the
pivot point of the 631 nose gear 7-7/8” [200mm]
from the aft edge of F2.
Retractable nose gear
Note:
While there are other retractable nose gear
units that may work in the Top Flite Gold Edition
Beechcraft T-34B, the Robart 631 is shown in this
manual because it rotates 105 degrees and is
designed specifically for this model. A 90 degree
unit would work but the mounting position would
have to be raised and the rails would have to be
slanted upward toward the front of the model in
order to achieve the scale appearance of the full-
size T-34B. These modifications are up to you.
-47-
Summary of Contents for T-34B MENTOR
Page 7: ...7 DIE CUT PATTERNS...
