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#Post#: 6217-------------------------------------------------- |
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Seagull 60 and 30 DIY Plans |
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By: lynx wind Date: January 2, 2017, 9:53 pm |
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With all the great input and recommendations the Seagull has |
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been given a long over-due update. The bearing is now oiled and |
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the shaft runs on an adjustable single ball bearing. The blades |
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are now aluminum with the SUT design, (or they can still be made |
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with fiberglass and an epoxied TE), The diameter has dropped to |
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24" and the height to 28" (based on easy to find 14" aluminum |
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flashing). The alternator now has N52 Neo magnets and a 3 phase |
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design that kicks out 12 volts easily at 150 rpm. 150 rpm is |
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about TSR 1.3 in a 7-8 mph wind. The magnet plate is a simple |
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6" steel square 1/8" thick. The blade profile is now the |
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proprietary Lynx Wind airfoil. |
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Even with the drop in size the output is much better due to the |
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efficient alternator and low resistance stator coils. |
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If anyone that has made the Seagull 75 wants a set of new update |
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plans, just PM. It wouldn't be hard to retrofit the Seagull 75 |
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with the improved alternator. |
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Thanks Members! |
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https://www.youtube.com/watch?v=SFq8bKVOBlY |
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#Post#: 6223-------------------------------------------------- |
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Re: Seagull 60 and 30 DIY Plans |
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By: lynx wind Date: January 13, 2017, 1:11 pm |
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The Seagull 30 is a little tiger. It is smallish but makes a |
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great thrum sound in good winds as its single phase alt grinds |
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out power. I was not pleased with startup in light winds. Not |
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that it actually matters because there isn't much power in 7mph |
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and below. But obviously the Seagull 60 can't just be scaled |
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down. Air molecules don't scale. |
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So the blades have been changed from 3.5" wide to 4" wide with |
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much better low end torque. Upper end speed may not be as good |
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but most of us see 7-25 mph winds. |
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I used SUT's aluminum blade process for the turbine. Very |
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simple and slick. I did use the stiffer shiny aluminum flashing |
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as a test. Worked very well for the small turbine. |
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#Post#: 6346-------------------------------------------------- |
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Re: Seagull 60 and 30 DIY Plans |
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By: Brunhilde Date: May 31, 2018, 10:22 pm |
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Details are well suited for people who like to get the |
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information directly, do not worry anymore. |
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