Fieldlines.com || Comments wind flex on bigger props help

Front Page - [Homebrewed Electricity-- (wind) (solar) (hydro) (steam) (controls) (storage) (mechanical)] - Classifieds - Site News
Everything - Newbies - [Remote Living-- (housing) (heat) (light) (water)] - Reviews - Diaries - Our Products

wind flex on bigger props help | 25 comments (25 topical)

Re: wind flex on bigger props help (3.00 / 0) (#9)
by rotornuts on Sat Oct 29, 2005 at 10:01:21 PM MST

Anthony, I think without a set of struts in the center a thin blade may just buckle and allow a similar amount of deflection to occur.

My real question here is how are a set of struts, as depicted, allowing for the use of ultra thin blades supposed to fit into a system that is supposed to reduce parasitic drag? Is it not true that the same structural members caused the demise of the bi-planes and tri-planes?

Mike

[ Parent ]

Re: wind flex on bigger props help (3.00 / 0) (#10)
by adelaide on Sat Oct 29, 2005 at 11:58:52 PM MST

hi just put on lighter tail (blue 1)and seeing if still wobbles when wind picks up ,so far looks better exept pole needs more gress to turn better now.i have a suport simular to that at front is thin pole out hub aria to 3 thin ropes which goes to all blades /tringal ,helped ,dident want to lose lo speed preformanc on this 1 with extra blades but good idear if i had to many rpm/more tip loses and at gess is eqivlent to wider cord ?slower more talk. my e mail is aaron32gtr@hotmail.com (have webcam on pole if any 1 wants to see add me on msn aaron32gtr) ,for the fellow ozzze?tryed ur email dident work? and yes they are close but work well and i like to experament/compare wind ushaly hits right way so no overlap 90% time(black triangle heats air with pespe/wood/car vent fan/drill on thread for traker($30 to make ) enginer freind and me estamates 2000w of hear /

[ Parent ]

Re: wind flex on bigger props help (3.00 / 0) (#13)
by IntegEner on Sun Oct 30, 2005 at 08:04:07 AM MST

"i have a suport simular to that at front is thin pole out hub aria to 3 thin ropes which goes to all blades /tringal ,helped ,dident want to lose lo (wind?) speed preformanc on this 1 with extra blades but good idear if i had to many rpm/more tip loses and at gess is eqivlent to wider cord ?slower more talk. my e mail is aaron32gtr@hotmail.com "

Oh, yes, I see the 3 thin ropes now that I look closer at the pictures. I give you credit. Adding blades behind other blades can actually help performance because the apparent wind the blades see when moving faster than the wind comes from the side and not so much the front. Look at www.tlgwindpower.com in Kansas of the States for a success story on using very thin aluminum blades. Send me updates on your work or start a website of your own. Contact info is on the lower left corner of my website.

Knucks

[ Parent ]

wind flex on bigger props help | 25 comments (25 topical)

Menu

· create account
· How to use the board
· FAQs
· search the board
· Google search the board

Login

Make a new account

Username:

Password:

You must be a registered user to post here. It's easy and free, and the link is on the upper right side of your page.
All trademarks and copyrights on this page are owned by their respective companies. Postings are owned by the poster, but may be deleted or moved at the ADMIN's sole discretion. The Rest © 2009 Forcefield.
You can Email the board ADMIN here. PLEASE include the username you signed up with!