I've been going back and forth on different kinds of trampolines for a while now, and had always been ignoring the websites that have info on the great big...
G'day, It is what the local beachcats use (local sailmaker told me to ring the tramp guys direct, it would be much cheaper than him building it). Look after...
Here's a pic of my hull so far: It's 15' long, 22" at the bottom panel, 13" freeboard at the midpoint. It's made with 1/4" Meranti, fiberglassed seams inside...
It seems that the url used earlier did not work let me all know if this is better Todd for the video Here are the link of a test trial of my proa model used to...
I like the idea of using different materials. Even steel If I could learn to weld right. Are you welding the aluminum? The weight issue is always a concern of...
Hello proa builders, I was lookin at your recent designs at pro_file sites. I am wondering if you all really want to design so classic proa hulls. Well, that's...
Hmmmm...interesting. My main hull is U shaped with no rocker. I haven't done the ama yet, but its an interesting thing to say that it should have lots of...
I'm getting error messages on the tiny urls and just sound on the video in proafile 6 On home and work computer. Both are set up with quicktime viewing. Todd ...
Funny, I made this video with quicktime from a mac, maybe this is the problem? Would you like me to send a different version that I can't download on the site...
... Hey, good idea! ... I think that's pretty well understood now, though Gary still uses some rocker in his hulls. Such was my level of not knowing what to...
What do you guys think about maybe making the ama really narrow/a deep V as opposed to giving it lots of rocker? I don't really want to have lots of rocker...
... deep V as opposed to giving it lots of rocker? I don't really want to have lots of rocker but the ONLY reason I don't want it is because I think a nice...
Hi Valery I went into Val's Files directly (http://groups.yahoo.com/group/proa_file6/files/Val%27s%20file/) and viewed the video with no problems at all, even...
It's important to differentiate between the rocker of a deep vee hull and a round or flat bottomed hull. A deep vee hull doesn't usually use any foils for...
I think with double hull type proa using high volume ama. The deep V with liitl to no rocker on ama has the abilty to ride through alot of stuff instead of...
What is the Origami boats list??? Well the asymetry of the hull is intented only since it is a shunting proa. The design is assumed to work exaclty as wing...
Hi Valery The following is from the Origami boats (http://groups.yahoo.com/group/origamiboats/ <http://groups.yahoo.com/group/origamiboats/> ) description: ...
Hi Val Sorry to have been so unclear. I certainly understand the idea of the asymmetry in the hull. I was just asking about the implications of this for...
Hi all, count me in. I just got the garage cleaned up from winter sled building. I just finished one of the sails according to Gary's plans. It sets so much...
Asymmetry doesn't add any lateral resistance in a round bottomed hull, but can aid in steering by balancing the drag of the ama. Asymmetry does add to the...
... Won't you get some from the effective foil? Bernoulli is still at work. Not as much as with the deep vee, but some. Maybe you are saying, not enough to...
hey, go look at my plan in val's file. An assymetric hull will not only give you lateral resistance but since there is a mean camber it will also give you...
Thank for the link I will foresure study what they have in this group with boat building. I have no experience in boat building especially in metal boat...
I think someone (maybe Rob?) mentioned this before, but if I remember correctly, the assymetric hulls aren't the most efficient means of getting lateral...
G'day, Pour in polyurethane foam will soak up water from condensation on an alloy hull and add very little stiffness. You may get more stiffness by rolling...
I agree. But I guess one point, which Phil Keck makes in the next post is that the vaka is a low aspect foil so a fin, dagger board or what ever really is a...
Yes you are right if will condense, my mistake. well, I think it will be stiff enought as it is design. Hope so anyway. Well I will do some more calculation to...
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