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Old Apr 27, 2012, 12:06 PM
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Blue Falcon
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My next fpv eagle during the build...the new thing is the folded prop in het neck. Fiberglass fuselage, eps wings covered by glass. Spann 2,4m.
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Old Apr 27, 2012, 12:13 PM
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Dance the skies...
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United States, MA, Walpole
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Quote:
Originally Posted by bluefalconhollan View Post
My next fpv eagle during the build...the new thing is the folded prop in het neck. Fiberglass fuselage, eps wings covered by glass. Spann 2,4m.
More info, please! How does that "neck" prop work? Is the head part of a spinner? Seems that would cause some serious balancing issues, and result in the head stopping at odd angles when power off.
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Old Apr 27, 2012, 12:56 PM
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The neck is not moving at all! The prop is simply mounted on the motor bell. The head of the eagle is fixed to the motor shaft that doesn't rotate.
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Old Apr 27, 2012, 01:09 PM
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Dance the skies...
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United States, MA, Walpole
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Quote:
Originally Posted by bluefalconhollan View Post
The neck is not moving at all! The prop is simply mounted on the motor bell. The head of the eagle is fixed to the motor shaft that doesn't rotate.
Clever. But the rotor is normally fixed to the shaft and supported by the shaft bearings, so you must have a hollow motor shaft with a non-rotating center shaft (like the reversible pitch prop motors for 3D) to anchor the head? Is that a custom machined folding prop adaptor? Very nice adaptation!
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Old Apr 27, 2012, 04:37 PM
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Where'd The Wise Men Go?!?
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Agree with Tom!

VERY Clever and GREAT look!!!

I couldn't tell if this has been flight tested this way though... Or did I miss something?
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Old Apr 28, 2012, 05:25 AM
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Nice concept ! Thank you for sharing
Arnaud
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Old Apr 28, 2012, 09:14 AM
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Love to see it completed.
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Old Apr 28, 2012, 10:06 AM
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Quote:
Originally Posted by G-LO View Post
Love to see it completed.
The model is nearly finished. Hope to make the maiden in about a week.
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Old Apr 28, 2012, 10:14 AM
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Wow..nice!
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Old Apr 29, 2012, 07:44 AM
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What could possibly go wrong?
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Market Harborough
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Yes, beautiful!

Tell us about vertical surface and yaw control. Is it something to do with those wingtips?

ingenious!

Nick
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Old May 05, 2012, 03:16 PM
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http://www.youtube.com/watch?v=BCOOklAyl4Q
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Old May 06, 2012, 10:44 AM
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That is too cool.
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Old May 06, 2012, 11:23 AM
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PERFECT LANDING !!!
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USA, UT, Orem
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Great design and video of the feathers. I lived in Nederland back in the 70s for a couple of years. Nice to see how green it is there. Sure beats the desert here. I would love to see some camera video though the windmills and over the tulip farms.

I have been thinking that the square wing has some possibilities. Some of the spin off designs that are inspired in part by the old peregrine is our slow flyers. http://www.rcgroups.com/forums/showthread.php?t=1538751. I have had the desire to get a bird look to these planes without messing up the aerodynamics. These planes will level themselves and put their nose on the horizon without pilot input. It would be great to have a bird plane that did that.

Your square wing gives a little inspiration that the polyhedral design may not be so noticeable in the air if the fuse, tail, TE of the wing and tips have the right look.

Any ideas????
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Old May 08, 2012, 06:14 AM
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Hi all,
Yes it flies!!!!!

Aigle depron (3 min 17 sec)
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Old May 08, 2012, 12:05 PM
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Made some progress on my flat foam seagull; mainly cut the ailerons, added servos and attached the motor mount.

Motor is mounted at a slight downward angle so that the angle of attack of the wings is tilted up a bit. Next step is figuring out how to fit all the components into the fuselage. I'll attach a 3-sided body/fuselage to the underside, connecting to the central profile fuse and the wings, to protect everything and reduce drag.

I'm hoping the dihedral and simple v-tail will make this a fairly stable flying wing.
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