Number Two is Cleaner

B11I1840.jpgThis United 747 was flying over the Bay during the Fleet Week display as I posted about in this post.  One thing that was very obvious as the aircraft was put through its paces by the crew was that the number two engine seemed to be burning a lot cleaner than the other three.  You wouldn’t pay much attention to the exhaust of a jet except when there is a clear discrepancy and, in this case, the number two was so obviously less smoky, I noticed.  Maybe it was fresh from overhaul.

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