sharpend wrote:
But most VC10 pilots have flown the pond (west to east) with a ground speed of well over 1000 mph... often 1000 kts
Huh? Let's say M0.886 at FL390 and ISA+30. I make that a TAS of 542 knots, or 624 mph. So to crack 1000 mph groundspeed, you'd need a tailwind component of 327 knots, bluntie old chap.....
