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Old 03-15-2019, 09:10 AM
  #11  
jobowker
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Join Date: Feb 2002
Location: Saugus, Ma. USA
Posts: 11,124
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From what I've read, the 4th gen 737's were aiming for a 15% efficiency increase. They redesigned the tail, the winglets, and added more efficient engines. The newer engines are about 10 inches wider, so they were moved forward a little and the landing gear was raised eight inches to maintain the same amount of clearance. So they didn't arbitrarily move them forward and up to make the thing unstable - they moved them a little to accommodate larger openings.

This looks (to an ignoramus like me) to be more of a case unintended consequences based on pilots being unaware of the new stabilization system, paired with the system making bad decisions based on erroneous sensor data.
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