Vr and Pressure Altitude
The following has been given to me to solve, but as a bear of very smal brain, may I ask the experts of this forum to help, please?
737 at 40tonnes at SL, book gives Vr as 114KIAS. At PA 8000 to 10000ft the book gives 120KIAS. Excepting EAS/IAS errors, that should not be significant at these speeds and heights, why does Vr go up at all, and how does it make such a large jump, 6kt?
Anything to do with rate of acceleration through to Vlo or V2?
Dick Whittingham