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possibility of ajustable furling
By brianschanafelt, Section Mechanical Posted on Wed Jan 16, 2008 at 07:55:43 AM MST
ajustable furling

I was courious about making a ajustable furling. when u are making your furling could u put a track that could hold weight say 5 pounds. and to make it furl early the weight would be close to the generator and to make it furl later it would be closer to the tail.you could do this on the ground by having a cable that goes up the tower.

possibility of ajustable furling | 3 comments (3 topical)

Re: possibility of ajustable furling (3.00 / 0) (#1)
by Flux on Wed Jan 16, 2008 at 01:44:32 AM MST

Anything is possible if you are ingenious enough. If you accept that you are going to drop the power cable down the centre without slip rings it gives you a challenge as to where to put any control cables. If you are prepared to use slip rings then manual and adjustable furling become easy. Far easier than you are thinking of.

Flux

Re: possibility of ajustable furling (3.00 / 0) (#2)
by windstuffnow on Wed Jan 16, 2008 at 11:10:50 AM MST

I did that on some of my earlier turbines to help dial in the tail weight. It was simply a tube that slid over the tail with 2 set screws and the weight was welded to that. Nothing spectacular just functional.

Another thing that worked fairly well in calculating where it might furl. I'd set the unit up on a bench pivot, no prop on the unit just the tail and head. A stick mounted to the bench to sit up against the tail ( center ), not allowing it to rotate but still allowing it to move up and down. I'd press a bathroom scale against the prop shaft and take a reading at the point it started to rotate. Calculate the forces on the rotor in a given wind and it would come out pretty close to where it would furl not including any inertia/gyro forces. Pretty close though...

.
Have Fun! Windstuff Ed

Re: possibility of ajustable furling (3.00 / 0) (#3)
by wdyasq on Wed Jan 16, 2008 at 06:07:15 PM MST

Just a comment on those who use 'text English'. If I didn't speak a native language and finally found what I thought was a correct answer for a problem .... but the (insert a great cursing word here) poster was so (second curse word for laziness) lazy they wouldn't properly use a language that could be translated by a web based translator .... and I was way out in the bush, had to beg for a connection and maybe paying a lot of money.

............. boy would I be upset.

Please have the thoughtfulness to post things where it can be read. Use a little proper punctuation. Use a few capitols. Break the post into paragraphs with thoughts and such. It is just nicer ...

Ron
Adventure is just bad planning." -- Roald Amundsen

possibility of ajustable furling | 3 comments (3 topical)

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