Rethinking V1

A Boeing KC-135A tanker takeoff with water injection.
Credit: U.S. Air Force
Just about everyone these days has settled on the same litany of callouts during takeoff: “80 knots,” “Vee one,” “Rotate” and “Vee two.” Some operators use 100 kt. instead of 80 kt. and the V2 call is sometimes omitted. But “Vee one” is more or less universal. I have been using it since I started...

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