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Old May 03, 2005, 07:24 AM
dbeamon is offline
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Cool

auto gyro blades


i have tried to build and fly gyros for some years now, always blade lift and spin up problems, but now have found the key to flying gyros. use 3 inch wide sig blades, no neg. they have awsome lift spin up instantly,they only cost &2.95 for a 36 inch peace and will make 2 blades, im flying 15 1/2 inch blades they realy work well..
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Old May 08, 2005, 03:29 PM
benson68 is offline
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Hi

Any chance of some more details to these blades

Thanks

Mark
Old May 09, 2005, 08:31 AM
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just go to sig web sit and order some 3 inch airfoil shaped wood it already shaped itsept fo the leading edge. cut them 15 to 15 1/2 inches long do not add weight, just drill and balance them . I cover mine with ultra coat, then fly them......
Old May 09, 2005, 02:51 PM
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Thanks

Have you got any details & pics of your setup

Tried gyros a couple of times with IC both crashed and burned

Thanks

Mark
Old May 09, 2005, 03:09 PM
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I never knew SIG made them, but they are in their catalog - http://www.sigmfg.com/cgi-bin/dpsmar...rch_02Index_01 . I've never seen them though.

Mark, any chance you might post a photo of what the crossection looks like?
Old May 09, 2005, 05:17 PM
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Are you speeking of the strut balsa with the rounded leading edge? I would like to see some photos of your set up if you can post a couple please.


Dave
Old May 10, 2005, 07:49 AM
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dont think its strut material, its 3 inches wide, im flying the 1/4 inch thick ones but 2 of my buddies are flying the 3/16 thick ones, they both fly great,all you have to do is round the leading edge just a little, i run my mast 10 degrees back no neg in the blades 5 deg, down thrust in the engine , i m flying ailrones on my rotor head and rudder and elevator on the tail, takes a little right ailron on take off and trim to level flight once you clime out.i fly 2 blade system 3 inch head made from 2 peices fiberglass with large serco wheels for the barring mount, gws gear shaft barrings fit right in with just a little boring out the centers with a 1/4 bit, hope this helps...send me your e mail and i will try to send you some pics,,,dbeamon@wfubmc.edu
Old May 10, 2005, 09:26 AM
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I sent you an email. Also...I did see some aileron stock at my local hobby shop with the leading edge at an angle. With some sanding, could be decent. I have also considered gluing a pc of foam on top of a pc. of aileron stock to make the Clark Y air foil and would make for easy shaping.
Old May 10, 2005, 07:13 PM
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Email sent. I think it would benefit all of us in the forum if you could share your photos here, both of your blades and your models.

We'd like to see your work!

Ari.
Old May 10, 2005, 10:11 PM
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Ok,,,went to the Sig site again and did my own search. Sure enough...it says airfoil shaped sheets and that link takes you to the link that Iter had posted. I may have to try it out....cant hurt!
Old May 11, 2005, 02:59 PM
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I saw on the autugyro web page...they speak of the same airfoil shaped blades from Sig.....I think this is worth investigating further guys!


http://www.ewmaclub.org/autogyro.html

http://www.autogyro.com/technic/hinttips.htm

http://www.autogyro.com/technic/f-2.htm
Old May 11, 2005, 04:48 PM
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I think those are the same as the ones supplied with the Autogyro Company of Arizona kits, Cieva C-4, Gyrobee, Kelleyt....etc. They laser cut the middle portions of the blank to use for the rotor blades.

Brian, an EAJr
Old May 11, 2005, 06:56 PM
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I just ordered the 1/4 X 3 X 36 blades. They should be here next week. I will let you all know whats up...
Old May 21, 2005, 11:18 PM
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OK they came in and they are nice! I should have gotten the two inch wide instead of the three inch. I can modify it with no problem. I will know for the next time. D Beamon...thanks for the info!!!!
Old May 23, 2005, 02:03 AM
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Can you post some photos?

Ari.


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