Hi there,
Sorry if this is old news. This evening, I followed the Norwegian carrier B788 NLH82P flight from Oslo to Stockholm. I am quite sure this was an empty plane transfer flight. One of the reasons for this assumption is the speed.
During a 2431 fpm climb, it reached 596 knots / 1103 km/h at 30.849 ft. I am aware of the (un)accuracy of my Flightradar24-app, but this was stable. Even at 28.000 ft, it reached 594 knots / 1100 km/h.
In my book, 596@30.849 equals Mach 1,013. Also 594@2800 equals Mach 0,999
Something tells me this is not normal procedure, and must cause a certain stress on the airframe? Heavy tailwind?
Flight here:
http://www.flightradar24.com/2013-09-23/16:53/12x/NLH82P
Regards,
Andy