Re: 727 deep stall (Re: tip vortices *do* exist!)

From: (Gary Bisaga)
Organization: The Mitre Corporation, McLean Virginia
Date:         29 Mar 93 12:15:33 PST
References:   1 2 3
Followups:    1
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In article <airliners.1993.277@ohare.Chicago.COM>, (Robert Dorsett) writes:
|> In article <airliners.1993.267@ohare.Chicago.COM> you write:
|> >In <airliners.1993.255@ohare.Chicago.COM> (Jonathan Thornburg) writes:
|> >
|> >>On this same trip, coming in to Salt Lake City over
|> >>the Wasatch mountains, I could clearly see the spoilers being deployed
|> >>several times, *without* their being any perceptable roll.  
|> The 727's spoilers can be used as speed brakes in-flight.
I believe this is only true in the 72s if you're using flaps 1 or less,
maybe up only.  I need to check with my 727 pilot friends to be sure.  I
don't know where the "Wasatch mountains" are so I don't know whether they'd
have any flaps deployed at that point.  But, as you said, spoilers are
used in many airplanes in flight, for example when the FMS requests
"add drag".

Gary Bisaga (