Sail design for strickly sailing craft
I have no engine for my Ariel by choice and my mainsail is ready for a new one. I'd like to make it and am looking for advice for a high performance cruising sail. In the past 6K miles, I've had numerous repairs around the batten pockets as that is where the main wear is. I've considered no battens, or full battens. I sail at times single handed. Any help would be great. Thanks, Bart bartblank (at) yahoo dot com
Trysail track and gate options
Ben, yeah!......Come aheard with a photo or more of S-boat sculpture. WE'd love to see it!
Making that corner turn from the side of the mast to the backside track would probably take two/three feet of gradual track twisting on the mast - believe I can see that part, but not the meeting of the tracks. How to make the switch I can't see. Like the Lionel track in post #8 the switching has to be on one plane. And any gate or break in the run of the track invites a possible sticking point to smooth raising and lowering of the sail There'd be a a lump where the switch is situated as the transition point.
First inclination is to "cast" the support pad on the mast with thickened reinforced epoxy. Take some noodling to make it possible. A thinner lower pad profile is likely the result. Already have cheek block & winch pads made that way.
You are not persuaded that having a second track
in rising wind - with the trysail ready to hoist - perhaps even from the cockpit - is argurment enough?
And you do look at things with the racer's edge?
Don't know too much about air flow around a mast. To my eye we have a beautifully shaped aerofoil for that - would be sin to mess with.
Yet, for arguements sake, many, maybe most, modern masts are rectangular in profile with rounded corners.
Isn't the wind on a profile like that squirrelling around a non-aerodynamic design impediment? Round masts also create eddies and drag.
What's the cost in air drag of adding that plastic Tides Marine track on top of our T-track that's popular these days: TonyG has it.
What about fully battened sails that require those slide/car thingies to make sure the sail can be lowered that in effect separate the sail from the mast. Those two are behind the mast.
Agree the con is significant. A triangular bumpout along 2/3s mast length (but really it's a low profile 3/4" tall standup bearing 45degrees on its legs) for a seldom used second track is a bit much to excuse.
And a trysail could possibly be rigged without any extra track by providing a normal track gate above the mainsail stack to slide it on.
(Can see the gate: the bottom trysail slide goes on first, and slides down to rest temporarily on the mainsail stack. Each slide put on in succession until the top is reached , close the gate attach ropes and go.) Isn't feasible in any wind, and maybe too high on the mast.
You'd need plenty of weather warning, especially as a singlehand. The main has to be flaked, bundled and the boom lashed before the try can be rigged & raised. (The Pardey alternative has the storm sail always ready to raise at a moment's notice.)
Of course, once the try is on the shared main track, you are committed to it being there - having to derig it entirely to raise the main again.
That's why a second track is so attracktive!
Versatility and options VS whimpy aerodynamics compromising the back of the mast.
Can argue that trysail dedicated track has to be really securely fastened to the mast. Angle idea might not be the best design.
If it gets ripped off in 40knots, there would still be the maintrack.
Perhaps a WOOD filler can be added along the length of the angle to fair the forward surface with the side of the mast?
Once made oak hounds for a round gaff sail mast. Made the spruce mast too - those days are gone forever. Was proud of my spars. Even parceled, served and leathered soft eyes that rested on them. Been so long, can't remember how to spice. Probably didn't do it briontoss. One time I was really immersed in (my idea of) that grand old stuff.