[airplaneguy]

It was 640 knots ground speed. About 740 mph. 465 Knots true Air Speed. KIAS was obviously less.

[Blueflag]

~.7 Mach. Good fuel saving speed.

[minnesota_bound]

#55 Did you travel back in time like Flight 33?....
See at 16:00 mark.

Twilight Zone Flight 33
https://vimeo.com/102344980