PAGE 7
TM
DEHAVILLAND BEAVER 120 ARF
R
R
R
R
R
STEP 2.3 – JOINING THE WINGS.
Now position the right wing and slide it onto the two wing
spar joiners that are protruding from the left wing root.
Slide the right wing onto the wing spar joiners until the
left and right wing roots are touching. If too tight, sand
the wing spar joiners lightly only and trial fit it again. Do
not overdo the sanding… remember you want a snug fit.
Locate the butter fly nut, bolt and washer assemblies.
Remove the nuts and washers from the bolts. Slide one
washer back onto a bolt and working from the cavities in
the centre of the underside of the wing, insert the bolt
through the forward retaining hole in the wing root. The
bolt will pass from one wing half to the other wing. Apply
a washer and a butter fly nut to the bolt. Tighten the
butterfly nut until it is barely tight at this point. Using the
second bolt, two washers and the second butterfly nut,
install the second bolt into the rear retaining hole in the
wing root. Tighten the second butterfly nut until it is
barely tight at this point. Now, place the wing on a large
flat surface and lay the leading edge down on the surface
so that the wing is pointing straight up and down…
bottom towards you… leading edge down… trailing edge
up. Using the flat surface to align the leading edges,
gently wiggle the wing halves and begin tightening the
butterfly nuts whilst keeping the wing root faces aligned
and the leading edges firmly against the flat surface.
Alternate the tightening of the butterfly nuts until they are
firmly finger tight and the wing halves are correctly
aligned. Do not use pliers on the butterfly nuts. Remem-
ber, the bolts and butterfly nuts are to hold the wing
halves together. The wing struts that you will install later
will actually bear most of the load.
Note that this wing is not intended to be glued and must
be used with the wing struts. It is to be assembled prior
to flying and then disassembled again for transport.
However, if you have a vehicle that accommodates a 10
foot wing, you can glue the wing together using Pacer 30
Minute Zpoxy but you must always use the wing struts
when flying.
R
R
R
R
R
STEP 2.4 – INSTALLING THE FLAP
SERVOS.
Locate the flap and aileron servo cavities in the underside
of each wing. The flap servos go in the inner cavities. The
aileron servos go in the outer cavities.
Carefully remove the red cover plates from the flap servo
cavities. Ensure you know which cover plate is for the right
wing and which is for the left. Remove the red cover plates
and retain the mounting screws. Notice that there are
wooden servo rails pre-installed into each flap servo cavity.
Locate the wining harness tubes that are protruding slightly
into each flap servo cavity. The tubes can be moved
slightly at this point. Check out the other end of each tube
for a clean position and then using Pacer Dap-A-Gap-A-
Goo secure the wiring harness tubes at the flap servo
cavity end.
Install a servo in each flap servo cavity and connect the
servo wire to the wiring harness. Use servos having at
least 40 oz of torque.
R
R
R
R
R
STEP 2.5 – INSTALLING THE AILERON
SERVOS.
Carefully remove the blue cover plates from the aileron
servo cavities. Ensure you know which cover plate is for
the right wing and which is for the left. Remove the blue
cover plates and retain the mounting screws. Notice that
there are wooden servo rails pre-installed into each aileron
servo cavity.
Locate the wining harness tubes that are protruding slightly
into each aileron servo cavity. The tubes can be moved
slightly at this point. Check out the other end of each tube
for a clean position and then using Pacer Dap-A-Gap-A-
Goo secure the wiring harness tubes at the aileron servo
cavity end.
Install a servo in each aileron servo cavity and connect the
servo wire to the wiring harness. Use servos having at least
40 oz of torque.
TM
This space left intentionally blank
We recommend professional
grade Pacer ZAP brand
products for top quality
assembly & finishing
of this model.
PROFESSIONAL
GRADE!
