Vs0
What is vs0?
VS0 is the slowest speed the airplane can fly without stalling when it is in the full landing configuration (gear down, flaps fully extended), and it marks the bottom of the white arc on the airspeed indicator. VS1 is the stalling speed in a clean configuration (gear up and flaps up) and marks the bottom of the green arc.
Studying for an FAA written test?
Terms like vs0 show up on the FAA knowledge test. Study them in context with ACS-aligned practice questions, AI explanations, and the cited FAA handbook reference behind every answer — free to start.