❏ ❏
5. Use 30-minute epoxy to glue the servo
mount blocks, with the servo attached, to the servo
hatch covers as shown on the plan. Roughen the
hatches with sandpaper where the blocks will be
glued so the glue will adhere better.
Note:
You can increase the strength of this joint by
drilling a few shallow 1/16” [1.6mm] holes into the
servo mount blocks. This will create epoxy pins that
extend into the blocks.
❏ ❏
6. Drill a 1/16” [1.6mm] hole through the hatch
covers into each servo mount block. Countersink the
holes and install a #2 x 3/8” [9.5mm] flat head sheet
metal screw. Test fit the servo hatches in the wing
and screw them down with the hatch cover screws.
❏
7. Return to the first step and mount the flap and
aileron servos in the other wing panel.
JOIN THE WING PANELS
❏
1. Remove the flaps. Test fit both outer panels to the
center section. Make small adjustments if necessary to
minimize any gaps you see.
Test fit your clamps to
make sure you have enough of them and to make sure
you know where you are going to place the clamps
when you actually glue the wing together.
❏
2.
Optional:
The dihedral braces and the
preset
angle of the root ribs on the outer panels will
determine the dihedral in the wing. But if you wish to
check the dihedral before you permanently glue the
wings together, clamp the wing together, raise the
center section off your workbench with balsa sticks
of equal size (so the wing is not resting on the
clamps) and measure the height of both wing tips.
The height of
both
tips (measured under the bottom
of the spar at tip rib W14) should be 3-9/16”
[90.5mm] (not including the balsa sticks). If the
measured dihedral of both wing tips is within a range
of 3-3/8” to 3-3/4” [85.7 to 95.3mm], the dihedral is
okay. It is important that both sides are the same.
Make adjustments as needed.
❏
3. Mix a batch of 45 or 30-minute epoxy to join the
wing panels to the center section. Apply epoxy to all
the mating surfaces of the end ribs, spars, and
dihedral braces. If you have installed the wires for the
wing tip lighting, pull the wires through the root ribs
so you can route them into the center section. Join
the outer panels to the center section and position
your clamps. Wipe away excess epoxy with a paper
towel before it cures and do not disturb the wing until
the epoxy cures.
MAKE THE FLAP & AILERON PUSHRODS
❏ ❏
1. Cut a 1/8” [3.2mm] deep notch in the aileron
for the die-cut 1/8” [3.2mm] plywood
aileron horn
mounting plate
where shown on the plan. Glue the
horn mounting plate to the aileron and sand it to
match the leading edge.
❏ ❏
2. Make the aileron pushrods from a .074” x 4” [1.9
x 101.6mm]
threaded one end rod
with a
nylon clevis
-33-
Содержание T-34B MENTOR
Страница 7: ...7 DIE CUT PATTERNS...
