vector-foil-proa-test1

english deutsch

vector-foil-proa-test1
(mike stolle oct'06)

single sider, one way proa, self controlling,
wind ward lateral surface, no radio control, no rudder, no vector fin
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video1 mov >>> / youtube >>>
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1-2 bft, as if it was hanging on a lanyard, the model regulates itself like a " perfect analogue computer", against all my missgivings, the performance is quite good in light winds, the boat adapts quick and optimal in changing wind's , like a leaf in the wind - so we have easy sailing, the main hull makes only slight waves, therefore it looks slower as it is, in this case, the windward float with extra weight pieces on it - but this is not necessary - look at the video 4&6

video2 mov >>> / youtube >>>
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approaching the shore, you should never do this with a real boat ...

video3 mov >>> / youtube >>>
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the hull speed should be reached, i never worry about capsizing, even through squally wind
conditions because the boat turns into the wind as much as necessary : the trimming is
right, more twist on the mainsail brings the pressure down and optimize the self steering capability, the extra - weight pieces, i put on the wind ward float, unnecessary, the negative effect was too prevailing (too much weight, too much draft and too many obstacles)

video4 mov >>> / youtube >>>
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what a wonder! the higher mainsail is better against capsize, i guess the boat turns better in the wind, the wind ward float can lift up a little, but it stays almost were it is, and as you see it, the things work automaticly, but the lateral surface is too small, that is why the drift twirls the water, and this can be changed by the vector fin next time

video5 mov >>> / youtube >>>
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if the trimming is wrong it can capsize, like you see here, especially with the small mainsail it turns too slowly in the wind, and "schwupps" it happens, and as you can see with the trimming in video 4&6 it did´nt happen

home

video6 mov >>> / youtube >>>
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the weights are here well placed, we see it by the same size waves on both hulls, and the optimal speed, as you see, it seems like i have to swimm - somehow... because the boat goes to the barrier ahead - the shrubberies on the water, and i did´nt expect such an influence from the stronger wind, so that i believe that the course depends on it, in stronger winds the boat goes nearer to the wind, after this happened the boat went the entire distance of the lake, as it was so far in the middle of the lake i could´nt make it out any more, but soon it was time to be on the other side, and if i did not have a bike to pick it up, i would have lost the race

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stolle@studiobunker. de

vector foil proa @ YOUTUBE >>>

links: fritz roth yahoo/proadesign, yahoo/proatech, proatech, proadesign

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more videos

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& pics

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