Date: 28 Aug 97 22:33:33 From: firstname.lastname@example.org (Larry Stone) References: 1 2 3 4 5 6 7 8 9 Followups: 1
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In article <airliners.1997.1873@ohare.Chicago.COM>, email@example.com wrote: >JFK-SIN is long enough that the B777-200IGW just cannot fly it nonstop, and >an aircraft cannot hold the route captive. The JFK-SIN flight would need to >depart prior to the arrival of the SIN-JFK flight in order to have reasonable >arrival and departure times at SIN. Don't forget that airplanes have maintenance rquirements so scheduling a route to hold one plane captive makes little sense if it doesn't allow time for needed maintenance. At least at UA, I believe a 747 needs a #3 service, essentially an overnight check, every 45 flight hours. Note that this is insufficient for two roundtrips JFK-NRT. If you were to dedicate a plane to a route like JFK-SIN, it is going to need that overnight check at the end of every roundtrip. And don't forget to allow for A checks (about weekly) and B checks (about monthly) that can also be done during an overnight but do require more hours (I believe a #3 service can be done during the 6 hours or so our planes overnight in SIN - an A or a B check can't). -- -- Larry Stone --- firstname.lastname@example.org http://www.wwa.com/~lstone/ Belmont, CA, USA My opinions, not United's.