We continue flying away from the ground until, normally, at around 1000 feet above the airfield the HP will lower the nose, reduce the thrust to climb thrust, and start to accelerate to S speed. This is the speed, shown on the airspeed indicator, at which the flaps can be retracted completely. The HP will ask for this to be done by stating “Flaps Zero” (sometimes followed by “Please” by those who have been brought up correctly!). The NHP repeats “Flaps Zero”, checks the speed is correct, and moves the flap lever. Now we can accelerate to the usual climb speed of 250 knots when below 10000 feet, and once above that, a typical climb speed of around 330 knots.