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Rudder and wingtip flutter at high AoA


bkthunder

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Very nice flutter effect. Would be nice to have this for DCS Hornet too.

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Oleg Levinski of the Australian Defence Science and Technology Organisation - Victoria authored a research paper in 2003 titled, Vertical Tail Dynamic Response in Vortex Breakdown Flow that mathematically describes this actual phenomenon.

 

The paper is approved for public release, with unlimited distribution.

 

Even if you don't want to venture into the math, the executive summary of the paper has a good discussion on how the F/A-18 vertical tail design takes advantage of vortex generation by the wing leading edge extensions at high angles of attack. The flutter you observe in the video above is caused by the vortexes breaking down and becoming chaotically turbulent at extreme edges of the performance envelope.

 

Interesting read.

 

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Nice find, thanks for the paper.

That effect would be super cool if implemented. Wonder what would Yo-Yo said to that one.

 

Edit: there is a hope that this feature is already planned for.


Edited by Gierasimov
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