Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

Re: Other: Sail Project Update.
By:Mike Savage
Date: 5/19/2008, 5:56 am
In Response To: Re: Other: Sail Project Update. (John Monroe)

: Hey, what about a mini trebuchet for

: I'll get right on it. Ha!

: Mike thanks for all the good information. I'll put my intra-library loan to
: work looking for some of this material. They have never failed me yet.

: I'm inching my way through this project to determine if it is going to be a
: project. Perhaps the 10 foot steel spar pipes with blue tarp plastic for
: cheap testing and if the results are ok then making permanent laminated
: curved wood spars and a good sail. What is worrisome is that all I find
: are people doing test on crab-claw sails usually end up as a failure
: except for the types that move the sail from end to end to change
: directions like the Proa's used in the south pacific.

: I did a twisted rope compression test in the 10 ft copper tube and the tube
: can't be set in a curve but always flips back strait under tension. That
: seems pretty obvious now I guess but it didn't at the time. I'll maybe do
: one more test with a 10-foot plastic pipe to see if it is strengthened and
: by how much. Set the pipe between two blocks with a weight in the middle
: and measure the amount of sag, the put the pipe under tension and then
: measure the sag again. This might tell you if plastic pipe can be
: strengthened enough for using as flexible spars. I can't believe I get
: side tracked on some of this stuff.

: John

John,
I don't think I've seen the main track for all the side tracks I end up on. :)

I think the failures may be that many testers were trying to get a rig as 'simple' as a bermudan. To use it as a western style rig, tacking rather than shunting, you have to think in terms of the old dipping lug rig for handling. The dipping lug is a good bit slower to switch sides than a bermudan, more 'technique' to it.

Mike Savage
South West Cork
Dang, now I'm thinking of playing with that rig type again.

Messages In This Thread

Other: Sail Project Update. *Pic*
John Monroe -- 5/6/2008, 3:17 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/15/2008, 12:56 am
Re: Other: Sail Project Update. *Pic*
John Monroe -- 5/15/2008, 3:53 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/16/2008, 11:59 am
Re: Other: Sail Project Update.
John Monroe -- 5/17/2008, 5:06 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/18/2008, 5:43 pm
Cut Down Sailboard Sail *LINK* *Pic*
John Monroe -- 5/19/2008, 5:09 am
Re: Cut Down Sailboard Sail
Bill Hamm -- 5/20/2008, 1:29 am
Re: Cut Down Sailboard Sail
John Monroe -- 5/20/2008, 4:02 am
Re: Cut Down Sailboard Sail
Bill Hamm -- 5/21/2008, 1:32 am
Re: Cut Down Sailboard Sail
John Monroe -- 5/21/2008, 5:10 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/18/2008, 1:23 am
Re: Other: Sail Project Update. *NM*
Bill Hamm -- 5/16/2008, 11:58 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/15/2008, 2:45 pm
Re: Other: Sail Project Update.
John Monroe -- 5/16/2008, 3:41 am
Re: Other: Sail Project Update.
Mike Savage -- 5/15/2008, 6:26 am
Re: Other: Sail Project Update. *Pic*
John Monroe -- 5/16/2008, 10:17 am
looking at that sketch...
risto -- 5/17/2008, 8:36 am
Re: looking at that sketch...
John Monroe -- 5/18/2008, 4:26 am
Re: Other: Sail Project Update.
Mike Savage -- 5/16/2008, 12:03 pm
Re: Other: Sail Project Update.
John Monroe -- 5/17/2008, 4:56 am
Re: Other: Sail Project Update.
Mike Savage -- 5/17/2008, 8:20 am
Re: Other: Sail Project Update.
John Monroe -- 5/18/2008, 3:57 am
Re: Other: Sail Project Update.
Mike Savage -- 5/18/2008, 8:35 am
Re: Other: Sail Project Update.
John Monroe -- 5/19/2008, 4:48 am
Re: Other: Sail Project Update.
Mike Savage -- 5/19/2008, 5:56 am
More Side Track Info. *NM* *Pic*
John Monroe -- 5/20/2008, 3:46 am
Re: More Side Track Info.
Mike Savage -- 5/20/2008, 9:06 am
Re: More Side Track Info.
John Monroe -- 5/21/2008, 4:48 am
Re: Other: Sail Project Update.
John Monroe -- 5/16/2008, 3:37 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/7/2008, 1:02 am
Re: Other: Sail Project Update.
John Monroe -- 5/7/2008, 4:02 am
Re: Other: Sail Project Update.
Bill Hamm -- 5/8/2008, 12:46 am
Re: Other: Sail Project Update.
Chris Ostlind -- 5/6/2008, 3:01 pm
Re: Other: Sail Project Update.
John Monroe -- 5/7/2008, 3:37 am
Re: Other: Sail Project Update.
Mike Savage -- 5/6/2008, 4:35 am
Re: Other: Sail Project Update.
John Monroe -- 5/7/2008, 4:30 am