Date: 17 Nov 96 20:04:02 From: email@example.com (Larry Stone) Organization: InterServe Communications, Inc. References: 1 2 3 4 5 6 7 8 9
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In article <airliners.1996.2310@ohare.Chicago.COM>, firstname.lastname@example.org (David T. Medin) wrote: >I thought the El-Al 747 crash in Amsterdam was attributed to just such >a scenario. One engine has an uncontained failure which also affected >the adjacent engine, leading to an uncontrollable airplane. > >Can anyone remember if the: > > 1. Pilot knew he had lost both engines on one wing > 2. That the adverse yaw was responsible for the crash I think I know what you're trying to say but that's not what "adverse yaw" means. Adverse yaw is the tendency of a plane to yaw opposite the desired direction of a turn due to added drag from a lowered aileron as compared to the opposite side raised aileron. It is adverse yaw that requires that the rudder also be used in a turn to provide the offsetting yaw. While there is a yawing moment caused by the assymetrical thrust that result when a non-center-line engine fails, I have never heard it referred to as "adverse yaw". -- -- Larry Stone --- email@example.com http://www.interserve.com/~lstone/ Belmont, CA, USA My opinions, not United's.