30
3 and 4 in place, with overhangs.
Note sharp bevel for 5. Just like tub and ski.
Sponson sheeted.
Glue R-3 in place, leaving equal
overhang on both sides, and an
overhang on the rear.
Glue R-4 with equal overhang on the
sides, and leave an overhang in the
rear.
Note that the bottom overhangs don’t
get sanded off if you plan to use a low
power engine.
If you are using a high performance
engine, glue the bottom sheets so that
all of the overhang is on the outside of
the sponson, opposite the sponson
tubes. This will make it much easier to
sand them off.
Once R-4 is cured, sand the front of R-4
flush with the forward bottom. This is
exactly like the forward tub bottom. Do
not round any corners.
Glue R-5 in place with equal side
overhang. Match the rear to just cover
the bevel you sanded in R-4. Leave the
rear of this square, just like the tub
bottom.
Sand the top of R-2, and glue the
sponson top on (R-6).