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Old Jan 09, 2013, 11:12 AM
Registered User
Joined Feb 2010
35 Posts
Question
Wingtip rudder?

Does anyone tryied or has seen wingtips with rudder function on V-shaped flying wing? Each wingtip rudder would only move outward at its turn and induce rotation as much by side dragging effect than by deflecting the air flux. Would this improve the precision of small direction changes. Thanks for letting me know.
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Old Jan 09, 2013, 11:29 AM
InceCreations
vincent123's Avatar
Joined Jul 2009
732 Posts
When i started building flying wings, i had rudders on the winglets. But that was only because i was not used to fly wing ailerons, in those days. Once i got used to fly and turn with ailerons, i skipped the rudders.

Aileron only felt better.
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Last edited by vincent123; Jan 09, 2013 at 12:08 PM.
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Old Jan 10, 2013, 12:21 AM
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Joined Feb 2010
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Thanks for your experience Vincent123.
I fly flying wings routinely and I feel I don't need wing tip rudders, however I am building a new frame for FPV and the feeling must be very different then.
Well I guess this should also be a FPV thread.
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Old Feb 06, 2013, 09:08 AM
..in a Johnny Cash voice.
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Canada, NS, Beaver Bank
Joined Aug 2010
310 Posts
Drag rudders are one of the most effective yaw controls.
Even if you used "normal" rudders you're going to find they work like a drag rudder. It's a successful design if you wish to build it.

http://www.chrisgood.com/uav/airframe/stages.html

http://www.google.com/url?sa=t&rct=j...ZvzpE3a9VviUoQ

They've been used with success since the original days.
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Old Feb 06, 2013, 01:55 PM
I don't like your altitude
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Joined Sep 2011
3,291 Posts
There's some good stuff about drag rudders here-
http://www.rcgroups.com/forums/showt...1571140&page=2
(and no rubber bands)
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Old Feb 06, 2013, 08:51 PM
micro experimenter
Joined Jan 2013
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Last edited by Gopher; Feb 06, 2013 at 08:57 PM. Reason: misread linked page. idea wouldn't work
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Old Feb 07, 2013, 10:34 AM
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United States, VA, Culpeper
Joined Dec 2012
234 Posts
I just came across this video on youtube, it compares thrust vectoring to drag rudders on the wingtips. A great feature of the setup used in the video is the use of both drag rudders used on one switch as an air brake. I just might have to use this idea on my own wing.
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Old Feb 07, 2013, 11:23 PM
internet gadfly
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Colorado
Joined Aug 2006
2,165 Posts
Quote:
Originally Posted by Stupot46 View Post
There's some good stuff about drag rudders here-
http://www.rcgroups.com/forums/showt...1571140&page=2
(and no rubber bands)
What's wrong with rubber bands?
http://www.rcgroups.com/forums/showthread.php?t=940445
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Old Feb 08, 2013, 08:37 AM
I don't like your altitude
Stupot46's Avatar
Joined Sep 2011
3,291 Posts
Quote:
Originally Posted by nmasters View Post
Norm...you and your links....... One of these days I'm going to follow one,and another in that ad infinitum.....may never find my way back
All the same,some good info..
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