Old School Model Works Raider Construction Manual page 8

flat against the board until
all the glue has cured.
When finished, you have
something that looks a
whole lot like this.
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Step 46 - Fuselage Assembly (WH4)
Locate four WH4s from LP1 and LP3.
These are glued, one on top of the other to
make a thicker WH4, as shown here.
We recommend epoxy for this step, as this
will be the block that holds the rear of the
wing in place.
Make sure all four pieces are perfectly aligned, and you might want
to clamp this all together until the glue cures completely.
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Step 47 - Fuselage Assembly (WH4)
Once the glue has cured on the WH4
stack, you'll probably need to sand it
a bit to make sure all the edges are
nice and clean.
You'll now need to test-fit this into
the large rectangle cutouts in the
FS5 pieces. Sand as needed to get a
good fit, then epoxy this into place as shown here. Clean off any
excess epoxy with some denatured alcohol to keep things clean.
Make sure that WH4 is perfectly centered as well.
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Step 48 - Fuselage Assembly (Starboard fuse sheeting)
Now it's time for one of the more important steps - attaching this
inner box to the starboard side sheeting.
IT IS VERY IMPORTANT THAT THESE PIECES ARE PROPERLY
ALIGNED, as any mis-alignment can result in a fuselage that won't
assemble properly, could be warped, and require a lot of trim to
fly properly.
First, lightly sand both
outer sides of the inner
plywood box to remove
any excess glue.
Grab one of the balsa
fuselage sheets that you
created earlier, with the
nose to the left, as shown in this photo.
Now dry-fit the plywood box to the sheet and note how it lines up.
The left edges should align, and curved edges that make up the
wing cradle should also be aligned. This will give a 1/4" gap along
the bottom edge, which we'll take care of later.
Once you're sure, it's time to glue it in place. Place glue on each
surface of the plywood box that touches the side sheeting. We
recommend a slower curing glue for this step to give you working
time.
Weigh the plywood box down to the sheeting to make sure it is flat
while the glue cures.
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Step 49 - Fuselage Assembly (Port fuse sheeting)
Once the glue has cured from the previous step, locate the other
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fuselage sheet and lay it down on your building surface.
Time to attach it to the fuselage assembly using the exact same
steps as you just used.
Carefully align the parts,
apply glue, and weigh it
down while the glue cures.
Again - alignment is critical
here. Both side sheets
should be perfectly aligned
to each other - and you can
check that by pinching the
rear edges together to
make sure they match.
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Step 50 - Fuselage Assembly (Top view)
If you remember reading in the
opening part of the manual, I
mentioned to keep all of the
scraps, punch-outs, etc., as they
might be used later on in the build.
This is just such an example.
In the photo you'll see a long
punch-out of lite-ply from the FS5 pieces (you should have two).
These make great "tools" for holding the fuselage in place over
the plans during the next couple of steps.
Position the fuselage over the fuselage top view. With it aligned,
pin these punch-outs up-against the fuselage using the dotted-
outline as a guide, as shown here.
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Step 51 - Fuselage Assembly (F5, F6, F7)
With the fuselage securely held in place, it
will free your hands to make sure that the
fuselage sides are properly aligned with
attaching these next three formers.
Locate F5 from BP3, F6 from BP4, and F7
from BP5. Paying attention to the orientation
of each former, start by gluing F5 in position,
EQUALLY pinching in the fuselage sides as
needed.
Then do the same for F6, and then finally F7.
You should have a fuselage that has a
symmetrical taper, please no bananas!
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Step 52 - Fuselage Assembly (LG1)
Locate three LG1s from LP1 and LP5.
These are glued, one on top of the
other, to make a thicker LG1. We
recommend epoxy for this step, as
this will be the block that holds the
main gear in place.
Make sure the three pieces are
perfectly aligned, and you might
want to clamp this all together until the glue cures completely.
When cured, now epoxy this into the bottom of the fuselage, into
the position you chose earlier (tail-dragger or tri-cycle as shown
here.)
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F5
F6
F7
Construction Manual