Re: [bolger] Another Failure
I have tried to get away with not taping joints, just filleting, on the
light stitch and tape boats, and it hasn't worked 100% of the time. To
much flex in the light hulls.
HJ
D
light stitch and tape boats, and it hasn't worked 100% of the time. To
much flex in the light hulls.
HJ
D
>
> The center seat was simply "buttered" in place, without tape our
> fasteners, and the joint between it and the topsides cracked on both
> the port and starboard side. One the starboard side the fillet
> cracked, on the port side the top layer of the luan plywood cracked.
>
It makes interesting reading to track down the section in the
Gougeons on boat building that gives their test results for the size
of plain fillet that is required to create full breaking strength in
wood. it is reasonably prodigious. In a less structuraly competant
epoxy the size would be larger still. nobody uses such huge
fillets. But it does suggest everything should be glassed where
elements are concerned. Panels are a lot more secure, which is why
one can get away with so little on bulkheads. I guess.
Gougeons on boat building that gives their test results for the size
of plain fillet that is required to create full breaking strength in
wood. it is reasonably prodigious. In a less structuraly competant
epoxy the size would be larger still. nobody uses such huge
fillets. But it does suggest everything should be glassed where
elements are concerned. Panels are a lot more secure, which is why
one can get away with so little on bulkheads. I guess.
> The center seat was simply "buttered" in place, without tape ourboth
> fasteners, and the joint between it and the topsides cracked on
> the port and starboard side. One the starboard side the filletcracked.
> cracked, on the port side the top layer of the luan plywood
FBBB --
As I have been more than happy to relate, Toby the Gull has been a
source of tremendous satisfaction for the last three weeks. But after
our last outing I got a little "feed back" from the boat regarding
how lightly I put it together.
The center seat was simply "buttered" in place, without tape our
fasteners, and the joint between it and the topsides cracked on both
the port and starboard side. One the starboard side the fillet
cracked, on the port side the top layer of the luan plywood cracked.
I think this happened when I was climbing in with my wife trying to
counter-balance from inside the boat. There was a lot of shift and
shaking and general chaos. The boat was never meant to be a family
knock about, and I suppose this shows why.
I think the fix will be to put a piece of fabric across the joint to
try and spread out the load. The luan completely ripping apart has me
thinking I may go ahead and tape the inside of the chines the next
time I'm doing glass work. Can't hurt and it might help.
Surfboards are build (compared to boats) very light. They are also
given a *very* high degree of finish (think mirror polish.) None the
less, they are considered more or less disposable, not usually
lasting more than 5 years before being replaced if not discarded
completely. This works out to about $100 - $200 per year. I don't
think I'd mind having to build a Gull every few years in exchange for
having a boat I can get on and off my car with one arm!
YIBB,
David
C.E.P.
415 W.46th Street
New York, New York 10036
http://www.crumblingempire.com
(212) 247-0296
As I have been more than happy to relate, Toby the Gull has been a
source of tremendous satisfaction for the last three weeks. But after
our last outing I got a little "feed back" from the boat regarding
how lightly I put it together.
The center seat was simply "buttered" in place, without tape our
fasteners, and the joint between it and the topsides cracked on both
the port and starboard side. One the starboard side the fillet
cracked, on the port side the top layer of the luan plywood cracked.
I think this happened when I was climbing in with my wife trying to
counter-balance from inside the boat. There was a lot of shift and
shaking and general chaos. The boat was never meant to be a family
knock about, and I suppose this shows why.
I think the fix will be to put a piece of fabric across the joint to
try and spread out the load. The luan completely ripping apart has me
thinking I may go ahead and tape the inside of the chines the next
time I'm doing glass work. Can't hurt and it might help.
Surfboards are build (compared to boats) very light. They are also
given a *very* high degree of finish (think mirror polish.) None the
less, they are considered more or less disposable, not usually
lasting more than 5 years before being replaced if not discarded
completely. This works out to about $100 - $200 per year. I don't
think I'd mind having to build a Gull every few years in exchange for
having a boat I can get on and off my car with one arm!
YIBB,
David
C.E.P.
415 W.46th Street
New York, New York 10036
http://www.crumblingempire.com
(212) 247-0296