View Single Post
  #9   Report Post  
Jim Woodward
 
Posts: n/a
Default ideas/plans for a small rowing/saiing boat

Phil Bolger (see http://www.hallman.org/bolger/ for background) designed a
lot of boats that might fit your general specification, many of which can be
built fairly easily out of plywood. Some of them look a little strange, some
look quite good. His colleague, Dynamite Payson, sells drawings of some of
the Bolger boats. You can depend on those to be competent boats that will
behave reasonably. He wrote at least five books of drawings and comments.

As an aside, and understanding your "I'm not a boat person comment", let me
do a little teaching. Sailboats want to go sideways. They need either a
keel or some retractable device do prevent this (there are also retractable
keels, but let's not confuse). In retractable devices there are four
choices, dagger boards, centerboards, lee boards, and (for want of a better
name) removable lee boards.

Dagger boards go straight down in a case. Push down to lower, pull up to
raise; usually held by friction. They're very simple (the Sunfish and
Sailfish use them), but have the major disadvantage that they don't pivot,
so if you hit something, either the boat stops or the board (or something
else) breaks.

Centerboards are pivoted at the front in a trunk (same thing, different
shape, as a dagger board case). They usually have a line on the back corner
to raise them. They're a little more complicated than a dagger board and
take a lot more space in the boat, but they come up automatically if you hit
something -- perfect for just sailing up on the beach.

Traditional leeboards are in pairs, one on each side, with a pivot at the
front. You lower the downwind one and water pressure holds it in place.
They're simple, take no space in the boat, but you need two because if you
tried to use the upwind one, the water pressure would tear it off the boat.
You need to switch from one to the other when you come about. The Dutch
built very large craft with traditional leeboards.

Removable leeboards go down like a dagger board. I've seen them with no
outside to their case -- just the hull on one side and a strip fore and aft.
Water pressure holds them in place. If you hit something, they'll usually
pop out.

So, you probably want a centerboard or leeboards, not a dagger board.

Also, in the marshes, rowing can be a pain. You may want a boat you can
paddle or scull. I once built a 14' duckboat that had a tunnel aft so that
you could scull the boat with a hidden oar and not scare the ducks.
Sculling is done with a single oar out the back, with a motion that is both
back and forth and twisting so that the blade always has a positive angle of
attack. After ten minutes practice, you'll be able to do it adequately.


--
Jim Woodward
www.mvFintry.com


..
"Andre Venter" wrote in message
...
Interesting to see how little attention was paid to this fellows
requirements by the people who relied - A couple of further suggestions
http//:www.dixdesign.com and look at his Argie 10 & 15's I have one of

each
"bear" wrote in message
om...
I've been planning on building a boat next spring but I now have a
friend with a cottage so my plan to build a canoe may turn into
building something that sails.

I've done some preliminary investigation and I like the 'Norwegian
Sailing Pram' by Simon Watts, but frankly the lapstrake construction
looks to be a bit over my head. I have read Kayakcraft and the cedar
strip technique looks more like what I could do well.

I'm not a boat guy so appologies in advance if I write something
incorrect.

This is what I'd like in a boat:

- light enough to car top - I don't want to invest in a trailer
- able to land it on a beach - I think that means I want a dagger
board. The lake at the cottage is shallow (3 feet) for about 50 yards
out
- able to row it well, I'll be rowing it more than sailing through
the marshes etc.
- needs to hold 2 adults and one child, ideally 3 adults
- about 14 feet long - my building space isn't that large

I plan on using it (in order of usage) in an enclosed bay (Burlington
Bay, inside of the bridge), at Long Point (Lake Erie) in the bay and
the marshes.

I like the look of the 'Cosine Wherry' but it doesn't have a sail
option and I'm loathe to go adding to plans on my first try.

thanks in advance