On Sun, 11 Jan 2004 23:36:55 GMT, "Dudley Henriques"
wrote:


"Ed Rasimus" wrote in message
news
On Sun, 11 Jan 2004 06:05:28 -0600, "John Carrier"
wrote:

If they extend when airpressure is reduced as airspeed slows, then it
would be redundant to add "also when a certain AOA is achieved"
because that is the inevitable, inexorable, undeniable result of
slowing.

Just musing here Ed; :-))))))

I might be missing something in what you're saying about slat extension Ed,
but FWIW, although it's true that dynamic pressure will bring out an
aerodynamic LE slat as airspeed is reduced and angle of attack is increased
as the result of that slowing, the only common denominator that SHOULD be
used for an aerodynamic slat extension parameter is aoa, not airspeed!

You are correct.

It's AOA, not specifically lower airspeed. They can droop under
acceleration when a design AOA is reached.

I got so wrapped up in trying to be all-encompassing while not
grabbing the tar baby that I mis-spoke.


Ed Rasimus
Fighter Pilot (USAF-Ret)
"When Thunder Rolled"
Smithsonian Institution Press
ISBN #1-58834-103-8