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Carole was out sailing near the Gold Coast (South of Brisbane Qld Australia) and saw a large harry proa sailing nicely in 25 knots of breeze. Her brother who...
G'day, Wonderful news, particularly as I am going to Brisbane in December to sail on it. Hopefully Col will send us a report on the sail up. Don't suppose...
A new species discovered! Rarely found in the wild, much sought after by bird watchers. ... From: Rob Denney <harryproa@...> Subject: Re: [harryproa]...
Hi All, Â Really enjoying Rob's way of doing Harriette - so far really easy and quick. Still behind him but trying to catch up. Â Doug ... From: Doug Haines...
Hello Rob,Doug and gang. Â What is "Rob's way of doing Harriette" ? Â I have just completed ( 4' x 22' )Â resin infusion table and will be making panels for...
Hi, I have been wondering about the use of a leeboard on a harryproa. I know that Rob tried it on one of the small prototypes and had problems. I was wondering...
Hi, I' ve been thinking about using a leeboard on a HP too. We have a lot of boats with leeboards here in the Netherlands, and I have some experience with...
My thought on the rudders was that if they are fairly small, it would be easy enough to have them mounted directly below the beams, near the lee hull, with a...
Hello  I am not realy keen on the idea of a leeboard but if I did want one I would think of it more as a supplement to the oversized rudders which might be...
its like the kss but withouot any cuts to get the sheets to bend around. same flat sheet folded up to make the hull then the deck flat bits go ont the top. ...
Well, I plan on having Rob do the design for me too, but one of the things I really like about this forum is how people explore different options. All designs...
Hello,  Yes, a few other reasons not to use leeboard. It would get in way when docking or raft up to other boats, the aesthetics and clean lines of boat,...
Hello Doug,  It sounds like you are bending with only one side of core glassed, not quit what I was thinking of. Hope you can get some pictures posted...
Gardner, U, the predecessor to the current harry design, had a leeboard and rudders, but Rob has since changed his design. A partial description is here: ...
yeah that's right one side is glasseed and hopfully it should still bend alright when I try to do that...slowly. The mid (bilge that takes the bottom curve is...
Both sides of the flat sides are glassed on the flat table, and the out side side of the bige is glassed flat on th etable.. The inside of the bilge is glassed...
Mike, Thanks for finding those posts. I remember reading them (I believe they were responses to other posts I started <blush> ) but I couldnt find them. At the...
Hi, Usually a leeboard is supported by a piece of wood a bit above the waterline to keep it vertical or whatever angle the designer wants it to. Also this...
G'day, Great threads, guys. Everytime I have something to say, someone beats me to it! Rare Birds rudders are 1.6m/64" deep x 500mm/20" wide. This is 1.8 sq ...
Another rudder question.. do the fore and aft rudders turn together, or in opposite directions? By this I mean, are the rudder blades always parallel to each...
The rudders on BD can be disconnected. When they are linked together they work in opposite direction, if the front goes left the aft goes right thus the boat...
That is VERY interesting. So, if I understand correctly, the normal operation of the boat is really just one rudder at a time. You don't link them except for...
We have the steering lines running through a clutch to be able to use one a leave the other one in fore and aft position. The clutch has a thin line tied to it...
By asymmetric I guess that we could ask about having asymetric hulls not that I'd want to build one, but there wwuld be advantage in leeway resistance. Doug ...
http://www.anne-quemere.com/indexgb.php Does anyone know anymore about this? Apparently this will be her second ocean crossing with a kite (after 2 rowing). ...
I once owned a one-tonne IOR racing boat from the 1970s, from a designer named Carter. He was known for his swing keels. We had 7000 lbs of lead that gave us a...
I'd probably stick with the standard hull or beam-mounted rudders. Yes, they have a lot of force on them, but one can design for such force. It's just some...
Gardner, All of us completely underestimate the rudder forces. No leeboards or other restriction to maintain direction except for hull shape and rudder make a...
Hello Gardner, Â When the rudder swings back the force on the steering control will increase considerably but if you have rudder blade that can be raised...
