Fifty Six manual

Page 12 www.oldschoolmodels.com Construction Manual
nStep 83 - Hatch Assembly (H3)
This step requires attention and visualization to make sure you glue
the H4's in place so the matching magnets attract - not repel each
other.
Snap each of the H4's in place to the magnets you just installed in
the fuselage frame sides, Make sure that the flat side of each H4 is
facing upward. Now, take your H1 assembly and hold it over this
area so the wider end faces the rear of the fuse.
Make sure you're also
holding the hatch so the
balsa side is up, the plywood
frame is down.
Now, one at a time, you
can remove each H4, and
press it in place into the
corresponding pre-cut notch
on the sides of H2 and H3.
They need to stick straight
up (or down, depending on how you’re holding the hatch), 90° to
the hatch surface.
Each should be a nice, press fit that will
hold them in place fairly well so you can
dry fit the hatch before permanently
gluing the H4s in place.
Once each of the H4s are pressed in
place, dry fit and make sure each of
the corners are attracting, not repelling
each other.
When you're good with everything,
remove the hatch, then carefully glue each H4 in place, by noting
it's orientation, removing it, applying glue, then pushing it back in
to place - firmly seated and at the correct angle.
nStep 84 - Sanding
Now is the time to get quite familiar with the sanding tools of your
choice. Take the time to perform a good sanding, rounding the
wing’s leading edge and blending it into the wingtips. Go over the
entire wing, making sure the sheeting is smooth, continuing the
curvature of the wing. Pound out the extra time on those wing tips
to make sure they are smooth, perfect works of art and match each
other exactly.
Push the hatch in place then smooth out the edges of the fuselage.
Because of the 3/32” sheeting and the 3/16" balsa supports
installed inside the fuselage’s rear perimeter, you can put in a little
effort to round the edges of the fuselage if you’d like.
Round the trailing edges of the ailerons, elevator, and rudder
(BP12). Sand bevels into the leading edge of both elevator halves,
the rudder, and the ailerons. And speaking of the ailerons, round
off the back outer corners with a nice radius.
The idea is to spend some time caressing this airframe you've
created, smoothing the rough edges until it's something so smooth
that it will flow through the air with ease.
nStep 85 - Fuse Assembly (attach main gear)
Locate both pre-bent main gear wires, two landing gear straps and
four 2-56 self-tapping screws. Using
a 5/32 bit, run those down through
the holes in LG1, LG2 and LG3 to
clear out any excess glue, then push
the main gear wires into place.
To hold them in place, install the
landing gear straps as shown in the
photo. Use a 1/16” drill to make the mounting holes for the screws,
and then attach the straps in position.
nStep 86 - Fuse Assembly (nose main gear)
Everything you need to assemble
the nose gear is in one package.
The nose gear wire is partially
pushed up through the white
mounting block. Slip the steering
arm in place, then push the nose
gear wire all the way through the
arm and the block. Stop when
the wire is flush with the top of
the mounting block.
With the nose gear positioned so
the coil is towards the rear of the
plane, position the steering arm at a 25-30° angle, then tighten the
set-screw in the steering arm just tight enough so it should make
a mark on the nose gear wire. Loosen the screw and remove the
wire. Grind a small flat on the nose gear where the screw made a
mark, then re-attach. Use a touch of thread-locking compound on
the screw to make sure it doesn't vibrate loose later on down the
road (or more to the point - down the runway).
nStep 87 - Electric firewall (E1)
If (and only if) you are powering
your Fifty Six with an electric power
system, you’ll need to also install
the electric firewall pieces which
position the motor a bit further out
than a glow engine needs to be.
Locate both E1s from LP2 and LP5.
Note that the E1 pieces are a bit
more trapezoidal than rectangle.
Position these on each side of the
front fuselage cheeks as shown in the photo. The angled edge should be
up against the firewall, and the top edge flush with the top of the fuselage
sheeting. Glue these in place.
nStep 88 - Electric firewall (E2)
If (and only if) you are powering
your Fifty Six with an electric
power system, you’ll now need
to locate both E2s from LP2 and
LP4. These are glued together
to form a thicker firewall, then it
is glued into position as shown
in the photo. You may want to
slightly bevel the left and right
edges to have a better fit to the
curvature of the fuselage sides.
We recommend epoxy for this step.