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  #1  
Old 12-29-2012, 11:15 AM
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kevinh kevinh is offline
 
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Talking For my UAV - a guide to formation flying?

Hi ya'll,

This isn't really RV related, but it is formation flying related. I'm a bit of a software geek, and I'm working on a new recreational project. If you are experienced in formation flying I'd appreciate your advice. I've never flown formation in my RV, so my only knowledge is doodling ideas on paper.

The project: Have an electric UAV form up as wingman on a (participating) hang-glider pilot and follow that pilot has he conducts his flight. If the UAV gets too close to human, fall away to ensure safety then rejoin. When falling away be careful to not plow into the ridge (ridge lift as opposed to thermal lift) which is likely to the left/right of the hang-glider.

For those concerned about UAV safety: there would be a human safety pilot for the RC plane monitoring from the ridge/in communication with the hang-glider and the plane is a small foam thing with the prop on the back. The safety pilot could can take over the plane at any time (mechanical failure, software failure etc...). I've written a lot of similar software in the past and I'm starting from the very nice Ardupilot codebase.

The question: Is there a guidebook of best practices for formation flight? Something like wingman should approach from the rear, increasing throttle to overtake then decreasing when in position X. etc... I've pondered on paper and I think I have a good set of rules I can encode into my software, but I'd like to learn as much as possible.

I fly a fair amount of gentleman's aerobatics in my RV, but I've never learned formation flying. Someday I'll devote adequate time to this .
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Last edited by kevinh : 12-29-2012 at 11:18 AM.
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  #2  
Old 12-29-2012, 12:29 PM
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You can start by getting the T34 formation manual. Check out the FFI web site ( (formation flying inc.). It might have enough basic info there without the manual.
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  #3  
Old 12-29-2012, 01:15 PM
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Yes we have a guide. But it would be best if you talk to people face to face. We have alot of people (west coast ravens) in california. I can help you but right now i am out of town.

Btw: we have our yearly formation clinic in april (at madera, ca). You should go to that and learn the proper techniques. That will help you understand the environment.
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Last edited by AX-O : 12-29-2012 at 01:20 PM.
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Old 12-29-2012, 02:37 PM
RBurn RBurn is offline
 
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There are some scholarly papers available for formation control laws for RC aircraft. West Virginia University has done this with an RC aircraft as the leader and autonomous aircraft as the followers.

http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=1709935&url=http%3A%2F%2Fie eexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber% 3D1709935
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Old 12-29-2012, 06:53 PM
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Default Current AF manual

Might help out. Lots of info about basic formation fundamentals.

http://www.e-publishing.af.mil/share...FMAN11-248.pdf
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  #6  
Old 12-29-2012, 07:59 PM
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The most comprehensive guide is available from FAST: http://www.flyfast.org. There are minor type- and region-specific variations but that guide will be enough to get you started. Look for the "FAST Foundation and Principles" document in the "Documents" section.
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Old 12-30-2012, 07:18 PM
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kevinh kevinh is offline
 
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Wow! Thank you for all the great replies (and PMs). Especially RBurns for that paper. I've begun writing and it will probably take me a few weeks before I'm able to ask any more specific questions.

The T34 training manual was also great.

A couple of PMs wanted more info on my approach. My notes are included on github.
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Last edited by kevinh : 12-30-2012 at 07:45 PM.
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