Standard rate turn

Aircraft maneuvering is referenced to a standard rate turn, also known as a rate one turn (ROT).

A standard rate turn is defined as a 3° per second turn, which completes a 360° turn in 2 minutes. This is known as a 2-minute turn, or rate one (180°/min). Fast airplanes, or aircraft on certain precision approaches, use a half standard rate ("rate half" in some countries), but the definition of standard rate does not change.