In order to effectively and safely fly an aircraft, pilots must have a good understanding of where their aircraft is in the sky, where it is heading, how fast, etc. While some of this can be attained simply by looking out of the cockpit window, a pilot will only get a general estimation of conditions, assuming that it is light enough outside to see in the first place. As such, cockpit instruments are the most reliable tool for a pilot to use, ensuring accurate readings on a variety of flight conditions with instant updates. One of the instruments that is a staple of aviation is the airspeed indicator, and it allows a pilot to monitor just how fast the aircraft is traveling in relation to the outside air. As this instrument is used from the initial lift off procedure to landing, it is paramount that pilots have ample understanding of how an airspeed indicator functions.