B-787 BOE01 Testing

[mmciau]

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 (http://flightaware.com/live/flight/BOE1)

Mike

[kenparry]

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.