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- In article <airliners.1992.50@ohare.Chicago.COM> drinkard@bcstec.ca.boeing.com (Terrell D. Drinkard) writes:
- >In article <airliners.1992.30@ohare.Chicago.COM> weiss@curtiss.SEAS.UCLA.EDU (Michael Weiss) writes:
- >>I have a hard time believing that an intact hydraulic system would have
- >>prevented AA191 from crashing. Let's face it, a wing-mounted engine falling
- >>off produces such a rediculous unbalance that even full aileron wouldn't be
- >>able to counter it.
- >Not true. An engine departing the airplane is a planned for event, in
- >terms of stability and control. An aileron would have no problem
- >countering just the imbalance of thrust (and it would actually be mostly
- >rudder), in fact, without the added drag of a windmilling engine, the
- >problem is a bit simplified.
-
- After the third post with this answer, I figure it's time to clarify my
- statement. I am referring to the unbalance of WEIGHT, not THRUST. Nonetheless
- I suppose we should go on...
-
- >Flight AA 191 lost the slats on the left hand
- >wing (if memory serves) because of Douglas' failure to include mechanical
- >lockouts on the slat actuators. They were not required to certify the
- >airplane.
-
- Which doesn't disprove my theory. As it is, though, the loss of the slats
- (which, according to all my aero classes, only lowers the stall speed but does
- NOT increase the coefficient of lift!) was enough to stall the wing, more than
- "countering" the loss of weight on the wing.
- --
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- - Michael weiss@seas.ucla.edu | School of Engineering & Applied Science -
- - Weiss izzydp5@oac.ucla.edu | University of California, Los Angeles -
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