©2019 Moustache Model Works, LLC
26
20cc DHC
-
2 Beaver Instruction Manual
40.
Build the hatch frame
a.
Retrieve all the parts from the 3mm lite ply:
the Hatch Overhead Bulkhead, hatch tabs,
Hatch Frame Reinforcement and magnet
holders, the Hatch Angle Frames, and the
Hatch Bulkhead and dowel supports.
b.
Glue the dowel supports in place on the
Hatch Bulkhead.
c.
Glue the magnet holders in place on the
Hatch Overhead Bulkhead.
d.
Glue the magnets into the Hatch Overhead
Bulkhead. Take care to match polarity with
the magnets already installed in the fuselage Overhead Bulkhead.
e.
Glue the Hatch Tabs in place on the Hatch Overhead Bulkhead.
f.
Sand an angle in the ends of the Hatch Floor to match the angle of the Cabin Angle Frame.
g.
Lay strips of waxed paper over the cabin frame, then place the hatch frame pieces into place.
Use small clips or clamps to hold the angle frames in place.
h.
Glue the pieces together.
i.
Glue the Hatch Frame Reinforcements to the Hatch Overhead Bulkhead and the Hatch Angle
Frames.
j.
Remove the hatch frame from the fuselage and apply more glue as necessary to the glue
joints.
46.
Glue the 5mm hatch retaining dowels
in place.
47.
Before trimming and attaching the
windshield, paint the hatch frame to
match the interior color. In both proto-
types, we used a light gray acrylic
paint from a local craft store.
48.
Carefully trim the windshield to fit the hatch. A pair of
curved
“
body scissors,
”
sold by brands such as Dyna-
mite and Duratrax, make this task much easier. Take it
slowly to achieve a proper fit.
a.
Start by removing the flange all around the wind-
shield
b.
Tape in place and mark the trim line onto the wind-
shield at the overhead bulkhead using a fine permanent marker. If you have built the
wings, they can be installed onto the fuselage to help accurately locate the wind-
shield. The vertical trim line should be approximately 17mm aft of the wing leading
edge. (see photo) Trim the windshield on this line.
49.
Put the windshield back in place, mark
and trim the forward trim line about
halfway between the hatch bulkhead
and the fuselage Bulkhead 1. This will
be a rough cut which will be trimmed
closer in a later step.
50.
Finally, mark and trim the sides.
51.
Remove the hatch frame and place wax
paper or plastic wrap dams in place to
prevent gluing the hatch permanently to
the fuselage. Replace the hatch frame
and glue the windshield in place using
canopy glue such as Formula 560.
52.
Trim the windshield flush with the hatch
bulkhead.
53.
Build the servo covers inverted on the
work table. Glue the sides first, then the
front and back, and finish with the legs.
Pay attention to the etched labels,
whether you want them visible or not.
