PPRuNe Forums - View Single Post - CNN Reports FEDEX crash in Tokyo
View Single Post
Old 19th Feb 2010, 20:55
  #504 (permalink)  
bearfoil
Guest
 
Posts: n/a
Once CG and MGW are known to be within limit here, they cease to be the issue. The fatal crash was caused by dynamic CG and GW; Once bounced beyond certain maximums, no a/c is controllable in any true sense of the word. A lightly loaded MD11 planted on the mains can snap either or both main wing spars, and once rebounded off a nose plant, the CG could be behind the a/c. Once any airframe is given a specific (and over limit) amount of energy, pilots are on a thrill ride. Demonstrably, as in this case, the Landing gear is "too robust" failing the spars and rotating the nose with such massive energy that the wings reloaded, folding them back against an already compromised structure. I think unforgiving is the word.