> > REPLY > > > > It sounds like you prefer the Air Marine model. How much noise does it > produce at full speed? The 303 made quite a bit of noise at 24 kts and above, when I went to the 'upgraded' model it was a lot quieter but still noisy, and even the 403 makes more noise than many will tolerate at high wind speeds. I should add that sometimes noise is the product of poorly designed or flimsy poles or mountings. I used oversized AL tube with SS brace tubes, and a very substantial base with 5200 plywood backing plates on a nearby bulkhead where oscillation might happen, and rubber collars around the pole a both ends. Result was NO harmonics. Go below and close the hatch and you can barley hear it until the wind really picks up and the blades twist to dump wind.
One thing is folks who say they want silence...huh? Sailboats are seldom silent in brisk winds, it is just that you get used to all the noise, same thing happens with a wind genny, you get used to it fast. But if you DO want to stop it, with the Air Marine you can flip a switch and the blades will then almost stop. I do this sometimes if I am anchored near other boats in a windy anchorage, at night I will turn it off so folks won't gripe about trying to sleep and hearing my genny. I personally don't care about the slight noise, but... I did this in the day once when a neighbor complained, only to see him start his engine which made much more noise than my genny! Oh well, guess he was used to that! I hear that the new model Air is even more quite. But one thing about this unit is the thin blades, very efficient and light weight but more likely to make noise. So to some extent it is a trade off...anything that makes this much power but is a lot quieter is also much heavier, not as sophisticated or reliable, and costs more. > > some of the ranchers are concerned the noise will spook the cattle in which > case the wind charged automatic watering pump is self defeating. I doubt it. On my uncles farm in Kansas he had a windmill for the cattle tank and it made all kinds of noises in high winds. Calves might spook, they will at anything, but once they get used to it, they would not spook. But...with electric there IS an advantage, you could mount the wind genny a ways away from the tank, just use a 24V or even a 48V wind gennerator and a battery close to the pump. -Ken > > > > _______________________________________________ > Liveaboard mailing list > [email protected] <mailto:[email protected]> > To adjust your membership settings over the web > http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > To unsubscribe send an email to [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives > http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here > http://www.gnu.org/software/mailman/mailman-member/index.html > ------------------------------------------------------------------------ > More new features than ever. Check out the new AOL Mail > <http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aolcmp00050000000003>! > ------------------------------------------------------------------------ > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web > http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [EMAIL PROTECTED] > > To unsubscribe send an email to [EMAIL PROTECTED] > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives > http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here > http://www.gnu.org/software/mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
