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Sponsons are mirror images. Dowels are on right sponson.
Sponson sheeting order. Needed for correct overhangs.
Sharp inside corner.
While the right sponson is curing, you can glue
the left sponson. Everything is the same, except
the left sponson has no dowels and both plates
are the same.
Glue the plates and foam as before, and weight
or clamp until cured.
When the sponson sides are cured, let’s do the
sheeting. This is where the strange order comes
in. The sheeting is done in this order because it
has to overlap in a specific way.
Follow along and you won’t have any trouble. If
something doesn’t seem to fit, stop and find out
why. Epoxy is impossible to remove from foam…
Grab all the sheeting pieces.
Use a file to sharpen the inside corner of the
sponson step as shown.
Use your sanding block with 80 grit paper to sand
the foam flush with both sponson plates.
Using epoxy, glue S-1 in place on the sponson
step. Use masking tape to hold it in place while it
cures.
It’s okay to repeat the steps on the other
sponson. S-1 and S-2 are 1/16 ply.
Glue S-2 to the sponson rear.
Once these have cured, sand the bottom and
sides of S-2 and S-1 flush.