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Re: Skin-on-Frame: Death of a Nikumi
By:B. Hamm
Date: 7/30/2011, 3:20 am
In Response To: Re: Skin-on-Frame: Death of a Nikumi (frankp)

: As I said, my modifications (to the dimensions) were most
: definitely a factor in the demise. I also know, for a fact, that
: water damage was a contributing factor. I'm not complaining or
: trying to put the blame anywhere, it is simply a lesson learned.
: I cut too many corners trying to build light... no big deal.

: The first piece that broke was plywood, so grain orientation is
: irrelevant there, simply the size I decided to make the station,
: which clearly wasn't deep enough. I suspect some water damage to
: the glue (not a marine grade ply) may have contributed but in
: that case I believe it's primarily the size. To be honest, I
: suspect if that piece hadn't broken the others wouldn't have
: either, based on where the pieces broke while on the car. I'm
: considering making the aft cockpit station (the one that broke)
: a solid "bulkhead" anyway as another experiment.

: The Gun'ls, stringers, and deck beams are all flat sawn white cedar
: (rather than WRC) and cut with clean longitudinal grain. They
: are smaller than Yost recommended. I don't remember the design
: specs but I want to say stringers were about 1/4" smaller
: in one dimension and the keel/gun'ls were about 3/8-1/2 inch
: smaller in one dimension than the design recommended, if I
: remember correctly. Clearly I pushed the limits a bit too much.

: The boat only weighed some 24 pounds or something like that so I
: got exactly what I hoped... a very light, very nice boat with
: minimal build time. I sacrificed the longevity of the boat in
: the process, which I had hoped not to do but it was always
: intended to be a "temporary" boat for me. Next time
: I'll make it a little closer to design specs and I think it will
: work out just fine. Especially with the added effort of sealing
: things.

: Other than cost and a bit of weight, I'd be interested to know what
: you consider drawbacks to sealing the frame.

: FrankP

Depends on what it's sealed with. Some coatings if damaged can let water into the wood that then has no way out, causes rot.

Bill H.

Messages In This Thread

Skin-on-Frame: Death of a Nikumi
frankp -- 7/20/2011, 7:39 am
Re: Skin-on-Frame: Death of a Nikumi
Bill Hamm -- 7/20/2011, 8:04 am
Re: Skin-on-Frame: Death of a Nikumi
frankp -- 7/27/2011, 8:18 am
Re: Skin-on-Frame: Death of a Nikumi
Wayne One (wwfloyd) -- 7/20/2011, 8:20 am
Re: Skin-on-Frame: Death of a Nikumi
Dave Gentry -- 7/20/2011, 8:24 am
Re: Skin-on-Frame: Death of a Nikumi
Bill Hamm -- 7/20/2011, 8:46 am
Re: Skin-on-Frame: Death of a Nikumi
Mike Bielski -- 7/20/2011, 12:42 pm
Re: Skin-on-Frame: Death of a Nikumi
ancient kayaker -- 7/26/2011, 7:20 pm
Re: Skin-on-Frame: Death of a Nikumi
frankp -- 7/27/2011, 8:10 am
Re: Skin-on-Frame: Death of a Nikumi
frankp -- 7/27/2011, 8:05 am
Re: Skin-on-Frame: Death of a Nikumi
B. Hamm -- 7/30/2011, 3:20 am
Re: Skin-on-Frame: Death of a Nikumi
Noel Bennett -- 7/20/2011, 5:04 pm
Re: Skin-on-Frame: Death of a Nikumi
frankp -- 7/27/2011, 8:12 am