[PSUBS-MAILIST] SeaQuestor progress - Exoskeleton

[David Colombo via Personal_Submersibles]

Hi Sean, the inner half of the mold is cast against a layer of waxed tin
foil for a fairly smooth finish. The first layup is chopped strand. The
next 4 layers will be chopped strand , and then 2 layers of biaxial with a
float coat of resin. Due to the complex shape,  this should be strong
enough for the inner wall.  The exoskeleton on the other hand could be as
many 8 layers of chop strand. The final top coat layers, will be determined
on smoothness of the chop strand. We expect that the final thickness could
be 3/8".
David

On Sat, Jul 6, 2019, 10:09 AM Sean T. Stevenson via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> David, can you elaborate on your fiberglass lay-up? Is this chop, biaxial
> weave, or triaxial weave? Vacuumed or just hand-pressed? How many layers
> and what finished thickness?
>
> Sean
>
>
>
>
> -------- Original Message --------
> On Jul 5, 2019, 22:06, David Colombo via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>
> Hi Guys, got to spend the day working on the exoskeleton.  After putting
> up an umbrella for shade, i removed the first inner ballast tank wall made
> from fiberglass. I have at least 4 more to make.  Next i stripped the
> ballast tank form work off the hull and proceeded to fit up sections of the
> wings and the tail cone sections. By the end of the day, 4 pieces were
> glued together and i started to rough shape the joints and fairing out the
> complex curves. Tomorrow if I'm lucky, meaning my wife lets me play with my
> submarine, i hope to add the next 4 ft section on the front around the
> forward pilot sail. Its all shaped on the keel jig in the shop ready to be
> moved onto the trailer.
> David
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