Re: [bolger] Ultralight boatbuilding.
- --- Nels <arvent@...> wrote:
> Seems to me that dacron [would float]The aircraft dacron fabric
shrinks with a heat gun and
the tension would control the
Building a kayak to Kotick's lines
using aircraft dacron instead of
wooden strips for planking seems
a worthwhile experiment, [as that
would be a light weight boat!], and
Bolger has written that light
weight is one of Kotick's virtues.
> The aircraft dacron fabricHere is a picture:
- --- In firstname.lastname@example.org, Bruce Hallman <bruce@h...> wrote:
> --- Nels <arvent@h...> wrote:Sorry Bruce,
> > Seems to me that dacron [would float]
> The aircraft dacron fabric
> shrinks with a heat gun and
> the tension would control the
I thought you were referring to using dacron with epoxy over plywood,
instead of using fiberglass - seeing it is cheaper.
Using dacron to build a skin on frame boat is no problem as you do
not even use any expoxy, except as a glue for the wood framing and to
attach the kevlar roving. I believe ceconite is all you use to
waterproof the dacron and pain is even optional.
--- In email@example.com, "Nels" <arvent@h...> wrote:
I believe ceconite is all you use to
> waterproof the dacron and pain is even optional.
Paint is optional as well:-)
- --- In firstname.lastname@example.org, "Nels" <arvent@h...> wrote:
> --- In email@example.com, "Nels" <arvent@h...> wrote:Look at
> I believe ceconite is all you use to
> > waterproof the dacron and pain is even optional.
> > Nels
> Paint is optional as well:-)
for info on that system.
- --- In firstname.lastname@example.org, "chodges31711" <chodges@a...> wrote:
> --- In email@example.com, "Nels" <arvent@h...> wrote:Pretty funny! Is says:
> > --- In firstname.lastname@example.org, "Nels" <arvent@h...> wrote:
> > I believe ceconite is all you use to
> > > waterproof the dacron and pain is even optional.
> > >
> > > Nels
> > Paint is optional as well:-)
> Look at
> for info on that system.
"Professional results without pain."
- I have been co owner of such a boat. (Monfort Cartopper 9) Plenty strong
as long as you don't hit anything, and maybe just plenty strong if it's
new (which ours wasn't). Very light. I'd suggest you look at some of the
covering material provided by a guy named Dyson, who wrote a popular
book about baidarkas. It's much heavier than the aircraft dacron, tho I
don't think it shrinks the same way. I wish that cartoon came out more
clearly. Looks gorgeous. Beware of excessively hollow curvature with
fabric covering (not sure on this hull as cartoon was blurry and I am
not sure how well my mental picture correlates with fabric properties).
Where does the original cartoon occur?
>I was just daydreaming of building
>the Bolger Cartoon rowboat
>using aircraft dacron and kevlar
>roving for the sheathing like
>done by Platt Monfort with his
>'geodesic boats' Does anybody
>around here have any experience
>with that type of boat building?
- Yah. Epoxy doesn't stick to it worth a !@#$. I've used it for peel ply.
(Remember that when building glass boats, might be handy.) It's an
entirely different material. A lot harder to stick down than cotton or
else Steve Whitman, reknowned air racer, would still be alive! But our
boats don't go 180mph so we probably won't have that problem if we're at
all careful, and the airplane guys won't if they follow the new fangled
instructions. I suppose if you used nitrate or butyrate dope to put it
on with you could keep your plywood from checking. Anyone try this? Oh,
and check with Defender (www.defenderus.com) and you might find less of
a price difference. At least there was less of one in the past. Don't
count on much in the way of structural properties from aircraft dacron.
>FWIW, dacron aircraft fabric
>appears to cost about half $$$
>of equivalent weight fiberglass
>fabric. There must be some
>*gotcha* I am missing.
- --- Lincoln Ross wrote:
>. Beware of excessivelyYes, so obvious, I
> hollow curvature with
> fabric covering
missed that, of course.
> Where does the original cartoon occur?Small boat journal Vol #29
Those images are only blurry viewed
in Internet Explorer. Right click,
and choose 'save as' and view them in
an graphics program of your choice.
I like Irfanview.