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Re: Material: Light weight layup - Bulkheads
By:Shawn Baker
Date: 12/6/2002, 4:44 pm
In Response To: Re: Material: Light weight layup - Bulkheads (KenB)

I'd agree with you 100% here, Ken.

I think most wooden kayaks of a normal layup are so stiff that stress risers are a very tiny risk. Besides, wood is also very resilient to the affects of big blows.

When your wood gets thinner, and glass gets lighter, the hull gets more flexible, and can flex enough for stress risers to become an actual problem.

Shawn

: While bulkheads would help provide stiffness and shape integrity around the
: cockpit, I think that rigid bulkheads are a stress riser for the boat
: overall. In a very lightweight boat the concentration of stress at a rigid
: form may be great enough to be a real problem. My inclination would be to
: eschew bulkheads and make up lightweight purpose-built float bags from
: heat sealable fabric. (This is the approach I'm taking with my almost
: finished Coho, although I don't have major concerns about bulkhead stress
: on this one.)

Messages In This Thread

Material: Light weight layup
Larry C. -- 12/5/2002, 12:30 pm
I'm building one too
Jack Sanderson -- 12/6/2002, 2:49 pm
Re: I'm building one too
Larry C. -- 12/7/2002, 8:17 am
Thanks, everyone *NM*
Larry C. -- 12/7/2002, 8:22 am
Re: Material: Light weight layup
Paul G. Jacobson -- 12/6/2002, 1:08 am
Re: Material: Light weight layup
Jeff The Tall -- 12/6/2002, 3:18 pm
Re: Material: Light weight layup
Mike Loriz -- 12/6/2002, 1:11 pm
Re: Material: Light weight layup
Don Lucas -- 12/6/2002, 11:04 am
Re: Material: Light weight layup - Bulkheads
KenB -- 12/6/2002, 1:02 pm
Re: Material: Light weight layup - Bulkheads
Shawn Baker -- 12/6/2002, 4:44 pm
Re: Material: Light weight layup
Mark -- 12/5/2002, 6:53 pm
Re: Material: Light weight layup
Mike Loriz -- 12/6/2002, 12:57 pm
Re: Material: Light weight layup *Pic*
Chip Sandresky -- 12/5/2002, 7:25 pm
Budget, weaker pressure "vacuum bagging"
Paul G. Jacobson -- 12/6/2002, 10:42 pm
Re: vac bagging
Mark -- 12/6/2002, 10:15 am
Re: vac bagging
Jeff The Tall -- 12/6/2002, 2:48 pm
Re: vac bagging
Shawn Baker -- 12/6/2002, 6:16 pm
Re: vac bagging
Chip Sandresky -- 12/6/2002, 5:25 pm
Re: vac bagging
Mark -- 12/7/2002, 12:58 pm
Re: vac bagging *LINK*
david schneider -- 12/14/2002, 12:03 pm
Re: vac bagging
Roger Nuffer -- 12/14/2002, 12:58 pm
Re: vac bagging *LINK*
david schneider -- 12/14/2002, 4:25 pm
Re: vac bagging
Shawn Baker -- 12/6/2002, 6:20 pm
Re: vac bagging
Mark -- 12/6/2002, 4:52 pm
Re: vac bagging
Jeff The Tall -- 12/9/2002, 4:52 pm
Re: vac bagging - OK for Wiki?
Shawn Baker -- 12/6/2002, 6:19 pm
OT: thanks for the pic
Larry -- 12/5/2002, 10:50 pm
Re: Material: Light weight layup
Scott Fitzgerrell -- 12/5/2002, 3:18 pm
Re: Material: Light weight layup
Rob Macks -- 12/5/2002, 4:03 pm
Re: Material: Light weight layup
Shawn Baker -- 12/5/2002, 4:25 pm
Re: Material: Light weight layup
Mike Loriz -- 12/5/2002, 2:37 pm
Re: Material: Light weight layup
Jim Kozel -- 12/5/2002, 3:11 pm
Re: Material: Light weight layup
mike loriz -- 12/5/2002, 5:09 pm
Re: Material: Light weight layup
Jim Kozel -- 12/7/2002, 9:41 am
Re: Material: Light weight layup
Mike Loriz -- 12/10/2002, 7:33 pm
Re: Material: Light weight layup
Fred -- 12/7/2002, 10:08 am
Re: Material: Light weight layup
Jim Kozel -- 12/7/2002, 11:32 am
Re: Material: Light weight layup
KenB -- 12/5/2002, 2:29 pm
Re: Material: Light weight layup
LeeG -- 12/6/2002, 2:28 pm
Re: Material: Light weight layup
Chip Sandresky -- 12/5/2002, 3:12 pm
Re: Material: Light weight layup
Shawn Baker -- 12/5/2002, 2:24 pm
Out there.
Myrl Tanton -- 12/5/2002, 12:44 pm
Re: Out there.
Ross Sieber -- 12/5/2002, 1:49 pm
RE: Boom! - are you sure?
Myrl Tanton -- 12/5/2002, 3:50 pm
Re: RE: Boom! - are you sure?
Larry -- 12/5/2002, 10:34 pm
Re: Float bag contents
Shawn Baker -- 12/5/2002, 4:23 pm
Re: COTFLGUOAHAHA
Ross Sieber -- 12/5/2002, 5:13 pm
Re: RE: Boom! - are you sure? *LINK*
Ross Sieber -- 12/5/2002, 4:23 pm
Re: Out there.
Don Flowers -- 12/5/2002, 3:15 pm
Re: Boom!
Shawn Baker -- 12/5/2002, 2:17 pm
Re: Out there.
Bruce -- 12/5/2002, 1:18 pm