very well said.
I moderate over in pelican-sail and there has been some discussion and debate about using lumberyard materials and so on after I brought it up one day. I recently posted some info that came from Bolger and JM and also Jeff Spira who sells mostly dory plans. He has adjusted all his plans like JM to lumberyard measurements and in his instructions he discusses that the use of waterproof glues has mostly taken over in plywood. What one has to contend with is plugs and voids mostly.
Jeff offers several free eBooks and essays for beginning boatbuilders and the use of lumberyard materials is covered in his free bool ply on frame construction.
He says in there that he recommends marine ply but a good boat can be built with lumberyard ply if care is taken in the construction. He mentions several points for builders.
While marine ply is still most desirable, exterior plywood has improved while marine has gone downhill in the USA. The US now allows up to 20% voids and plugs per side even in marine ply. Hardwood ply like mahogany has no knots and thus no plugs and voids to speak of. Even a top grade fir ply can make a good boat if thre ply is sealed with resin inside and out. Glen-L recommends this with all wood on all their boat projects and they coined the term 'encapsuelate' the wood.
I live far fro the coast and any marinas and truck freight costs are huge when ordering large itemns alike lumber. I am refurbishing a vintage 24 foot factory fiberglass boat and the hull is sound. I opted to use AB grade exterior ply for the repairs to the interior cabinetry and dividing bulkheads.. and have acheived good results. I completely encapsuelated the wood with resin and then painted it.
besides polysail international... I like them too.. another col site is simplicity boats.. home of the $10 yuloh plans.. but they have lots of great info as well http://www.simplicityboats.com/
I built the $10 yuloh and it is a great project and works well, tho the article was written back in the day and it actually cost me around $30 getting everything at ACE hardware. The Yuloh plans and page is here http://www.simplicityboats.com/yulohpage2.html
There is an entire treatise on sculling one page back from that.. and there are pages of vintage boat designs, 1 and 2 sheet boats, and sails and all kinds of neat stuff. By the way there are vintage boat plans on Polysail international site too. http://polysail.com/
From: prairiedog2332 <nelsarv@...
Sent: Tuesday, January 1, 2013 10:48 PM
Subject: [Michalak] Re: Wooboto vs. Mayfly
From my experience following Bolger's writings for many years is that
Jim did so even more so, sharing a lot communication and he also shared
a lot of the same philosophy. Essentially looking at boat design from
outside the box of the traditional way of doing things and also looking
at new options for accomplishing the same goals in a simple way using
materials available at most hardware and regular lumber outlets. Jim
mentions the latter in the video posted earlier. There were no boat
chanderies where he was located so he had no choice but follow a simpler
way. And he was attracted to the "Instant Boat" building method
developed by Bolger and Dynamite Payson.
Bolger was also very conservative in espousing the capabilities of his
small boat designs. He often pointed out that the level of capability of
his designs often had more to do with the skills of the skipper than the
ability of his designs. He also pointed out that the performance had a
lot to do with the skills of the sail maker as much as the skills of the
hull designer. Dynamite Payson who built many of Bolger's initial
designs and tested out the plans for discrepancies was amazed what a
skilled dinghy sailor could do with some of them during shakedown
Three things come to mind as breakthroughs from the traditional way of
doing things. First - going with free-standing sail rigs with no
complications of shrouds and stays and the need for a jib. Then shallow
draft without a centreboard complication and easy to launch and trailer.
Thirdly the development of poly tarp sails, making sail making within
the capability of even a neophyte without a lot of money to spend. Poly
tarp sails with really good performance where further developed by
PolySail International and have been shipped all over the globe as well
as offering DIY instructions.
This is what I call synergy - where the sum of all the parts equals more
than the sum of the individual parts. To me this makes small boat
building as it stands now as the best it has ever been in history!
Jim's bottom line seems to be that there is no reason why a beginning
boat builder and sailor cannot get out on the water with a boat to be
proud of without spending a lot of money.
Happy 2013 everyone. Now get busy with a design you like and give it
your best shot!
--- In Michalak@yahoogroups.com, "souderscott997" wrote:
> I agree with you totally so I am not sure where Jim would disagree
with anything at this point, or even where we disagree at this point. I
think any designer these days is going to "underrate" to a degree simply
because we live sadly in a world where some idiot wants to sue you over
anything that may go wrong.
> --- In Michalak@yahoogroups.com, Andres Espino ima_very_cool_cowboy@
> > JM would probably disagree, but I think he underrates his designs a
considerable amount!Â Every one of his boats is far tougher and more
capable than he is willing to tell folks, which is understandable.Â
In my opinion Jims boats are every bit as durable as Bolger boats.. and
one can see a lot of Bolger in many of his designs.
> > Musicbox 2 is an almost duplicate of the Bolger Micro without the
complicated keel to cast from lead.Â Viola is very close to the
Bolger Martha Jame.
> > Andrew
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