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Originally Posted by jfleisher  I sat here thinking about this, and having never taken off with a 40 knot tailwind i cant quite get it straight in my head. Are you saying that in order to takeoff in this case you would have to accelerate to 40 knots groundspeed before the airspeed indicator started registering? Because I imagine myself standing out on the wing during the takeoff roll, and while I would certainly feel wind from behind I would think that the instant the plane started to move forward there would be SOME relative wind from the front, thus adding to the indicated airspeed. |
Picture yourself standing in a river. The river is flowing at 10 mph, pushing at your back. Now, instead of standing still you start walking downstream at 5 mph. Are you going to feel water pushing at your back or your front?