A set of regulations under which a pilot operates an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going.
A type of short-range radio navigation system for aircraft, enabling aircraft to determine their position and stay on course.
An instrument that displays the rate of climb or descent of an aircraft.
Designated speeds for aircraft operations, such as V1 (takeoff decision speed), V2 (takeoff safety speed), and Vr (rotation speed).
A system of lights on the side of an airport runway threshold that provides visual descent guidance information during the approach to a runway.