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flying flea aerodynamics question



 
 
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  #11  
Old November 11th 10, 08:43 PM
springhill springhill is offline
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First recorded activity by AviationBanter: Nov 2010
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Quote:
Originally Posted by Stealth Pilot[_3_] View Post
mignet's flea had an aerodynamic problem due to an unpredicted slot
effect.

this is from a british museum web site....
"Following a series of fatal accidents involving this type the French
authorities banned its use in 1936 and wind tunnel tests revealed an
aerodynamic flaw that could result in an uncontrollable and ever
steeper dive. The Air Ministry subsequently issued a ban in the summer
of 1937 and GAEEH was dismantled and stored in the owner's garage."

the wind tunnel tests referred to were in the RAE tunnel at
farnborough and made the flea the first full size aircraft ever tested
in the tunnel (because it was small enough to fit).

the result of the work done in farnborough actually saw a number of
mods to the flea that actually fixed the problem.

has anyone ever seen an aerodynamics report from the wind tunnel
testing. I am presuming that there would have been a formal report
written up and while the nasa web search engine gives us access to the
naca aerodynamics work, I've never encountered similar from the
british.

does anyone have a link to a report of the 1936/7 flying flea
aerodynamics investigations?
I'd sure appreciate one.

Stealth Pilot
Hello Stealth Pilot.

It's good to see another discussion about the Mignet Flying Flea. There is a very good blogs that offers a great deal of factual detail about what has been going on in the Flea movement post WW2 . Its worth a read of the whole material to get the big picture.One article covers the veteran Flea disciple and builder Yves Milliens who was a close friend of Mignet's and in his 90,s has decided to speak out. A very interesting letter.
http://flyingfleaaircraftfacts.blogs...and-pilot.html
with thanks

Springhill
 




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