PPRuNe Forums - View Single Post - Merged: Qantas 747 Engine failure. Returns to SFO
Old 1st Sep 2010, 08:11
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bsieker
 
Join Date: Jul 2007
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Originally Posted by SMOC
Lucky it wasn't a fan blade.
On the contrary. Fan blades are contained. That is a certification criterion.

Fan-blade-off looks spectacular, but is less dangerous than a failure of IP of HP parts, which rotate at much higher rpm. Energy rises with the square of rpm, but only linearly with radius.


Bernd
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