8
Tub sides marked before assembly.
Ledge for radio box lid frame.
Tub side shown with boom tube for alignment.
Tub
Let’s build the tub.
The tub sides are laminated from 2 pieces of 1/8
ply, so take your time and make sure you
understand the tub assembly before you glue
anything.
First, mark the insides of the inner tub right and
left.
Make these marks in the front portion of the
sides, where it won’t be seen later.
The outer sides are the same, except that there
are no lightening or bulkhead holes.
Notice the little “ledge” at the rear of the inner
sides. This is for the radio box lid frame.
Use a file to touch up the inside corners on the
tub sides, to square off the tiny radius left by the
cutting bit.
Glue the inner sides to the outers, making sure
that you have a
RIGHT
and a
LEFT
side (they
are mirror images of each other).
Use the aluminum boom tubes to ensure perfect
alignment of the inner and outer sides.
Try not to get any glue in the slots for the
bulkheads.
Be sure that the rear of the sides are flush at the
bottom, and have the 1/16 gap at the top.
Be sure to scrape any excess epoxy away from
this corner, as the lid frame will be glued here
later.
Check to make sure that the sides have not
slipped out of alignment.
Allow to cure.
Check the fit of the bulkheads in the right tub
side.