B-787 BOE01 Testing

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25th February 2010 | 19:09

#1 (permalink)

mmciau

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Joined: Jun 2007

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From: Marion, South Australia

B-787 BOE01 Testing

See where BOE01 has reached Mach 1.07 Groundspeed during testing today 19.34 UTC 25 February 2010 according to FlightAware Log

FlightAware > Boeing Commercial Airplane Group #1

Mike

26th February 2010 | 13:42

#2 (permalink)

kenparry

Joined: Feb 2003

Posts: 1,078

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From: Brighton

Quote:

reached Mach 1.07 Groundspeed

What you might call a terminological inexactitude.

Mach number is defined as TAS divided by the local speed of sound. So a "Mach groundspeed" does not exist.