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The ultimate saildrive- Retractable Voidth-Schneider
Glenn Ashmore wrote:
I don't think it is quite ready for prime time yet but here is an interesting idea. A small retractable Voith-Schneider drive like those used on modern tugs. Retracts flat into the hull and when extended will deliver thrust in any direction. http://www.spw-gmbh.de/en/hb/ Boy, that thing takes up a BUNCH of height (27+")! (I think I have room enough under the cockpit, though.) And if it can only drive a 32' boat to 5 knots without overheating (if I interpret correctly, English is not their first language), there's something seriously wrong right now. We do 5 knots using only .2 gph, which calculates to somewhat under 7 HP. And 380v AC onboard isn't my favorite thing. In the power industry, anything over 220 required pretty special precautions. Still, when they get things smoothed out, it could be a very interesting system. -- Jere Lull Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD) Xan's Pages: http://members.dca.net/jerelull/X-Main.html Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/ |
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