©2019 Moustache Model Works, LLC
36
20cc DHC
-
2 Beaver Instruction Manual
39.
Install the oil cooler using either double
-
sided tape or medium CA. Refer to
the plans for positioning.
40.
After painting the LG fairings and main
gear, install the landing gear axle shafts
to the aluminum main gear using the
included lock nut.
41.
Install your wheels of choice. Scale
size for standard wheels is 3
¾
”
(95mm), and scale size for tundra
tires is 4 ½
-
5 ½
”
(115
-
140mm).
Shown are
5”
Dubro tundra tires.
35.
Fit the upper half of the fairing in
place. Cut a clearance slot to provide
access to the fuselage strut mount.
36.
Once satisfied with the fit of the LG
Ribs and fairings, glue the ribs in place
on the gear using medium CA.
37.
Glue the fairing lower half in place using
a mixture of epoxy and microballoons
applied to the LG Ribs.
38.
Glue the fairing upper half in place also
using a mixture of epoxy and microbal-
loons applied to the ribs and the leading
and trailing edges of the fairing.
42.
Assemble the airplane completely and
check cg. CG has been tested between
2 ¾
”
and 3 ¼
”
(70mm –
83mm) aft of
the leading edge, measured outboard of
the taper at the root LE. This equates
to 28%
-
33% of MAC. CG is easiest to
measure at the flap servo cover.
As CG moves aft, the stall results in
more wing drop, but the Beaver recov-
ers quickly. There is no one
“
right
”
cg!
The right cg is the one that yields the
flight characteristics the pilot prefers.
33.
Slide the upper and lower LG Ribs onto
the landing gear and tape in place. The
lower LG Rib should be right at the end
of the fairing and the upper Rib should
be as shown in the photos. Exact
placement is not required.
34.
Fit the lower half of the gear fairings in
place and note where the LG Ribs need
to be trimmed and sanded for a proper
fit. Also note the lower fairing will need
to be trimmed to clear the float mounts.
The fairings were designed to have
about
1/16”
(1.5mm) clearance from the
fuselage. (The photos show 3D printed
prototype fairings, but the included fiber-
glass fairings fit the same)
32.
Install the main gear using the 5mm
socket head cap screws and washers.
The matching holes in the aluminum
main gear are drilled and tapped for M5
screws.
