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Old 3rd Sep 2009, 12:15
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Old Smokey
 
Join Date: Jun 2004
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As one major U.S. manufacturer (starting with a B) puts it -

High Speed Cruise is cruise at either the limiting speed for the aircraft (Vmo/Mmo) OR the maximum speed attainable at Maximum Cruise Thrust (MCR) if less than Vmo/Mmo. Performance tables applicable to High Speed Cruise conform to this philosophy.

Long Rance Cruise is as Clandestino described it.

Regards,

Old Smokey
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