How do I set the airspeed autopilot in a 737?
I can set the heading and the alt., but not the airspeed. Therefore, I am constantly having to adjust the throttle up and down to stay below overspeed.
Arm the autothrottle (switch on the left of the AP panel) put the required speed in the speed window or mach no depending on phase of flight. Then press IAS or MACH not too familiar with the default 737 so I am sure someone will correct me if I am wrong.
PH is right. That how you set the airspeed in the 737.