Re: Airflow over the canard


David J. Gall
 

Jon,

I think it means that you have some air leakage around the hinge. The
higher-pressure air along the lower surface finds its way through the hinge
slot and makes a little jet or invisible geyser of air that sets up two
little counter-rotating vortices in its wake. No big deal unless you're Jon
Sharp....


David J. Gall

----- Original Message -----
From: "Jon Finley" <finley@...>
To: <Q-LIST@...>
Sent: Friday, September 15, 2000 7:13 AM
Subject: RE: [Q-LIST] Re: Airflow over the canard



David,

I'd have to look to be positive but am pretty sure that is where my
spinning
tuft is located. What does this mean/imply???

Jon Finley
Q1 N54JF - 1835cc VW
Q2 N90MG - Subaru EA-81 DD Turbo
Apple Valley, Minnesota
http://63.90.191.136/Finley/finley-subaru.html



-----Original Message-----
From: David J. Gall [mailto:David@...]
Sent: Thursday, September 14, 2000 10:33 PM
To: Q-LIST@...
Subject: Re: [Q-LIST] Re: Airflow over the canard




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Larry,

Those spinning yarns at midspan are probably plus or minus about 20
degrees
in line aft from the mid-span elevator hinge, no?

David J. Gall

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