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Thread: China Eastern PVG-HKG Business Class (Using DL SkyMiles) - lots of photos
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Old Dec 16, 2011 | 7:17 pm
  #12  
anacapamalibu
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Join Date: Oct 2005
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Originally Posted by moondog
To save money, of course.
They made a lot of scientific studies and reduced speed to
abate the high pitch sound associated with acceleration and deceleration.
saving money was just a by-product. LOL
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