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Examining over 100 years of flight automation and the history of the autopilot

Aerotime

Flying for extended periods of time at the controls of a basic aircraft was hard physical work, and poor weather or mechanical issues could also add to pilot fatigue on longer flights. Generally speaking, a commercial airliner must be equipped with an autopilot if it has a capacity of 20 passengers or greater.

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Exploring the Intricacies of the Airspeed Indicator

Pilot's Life Blog

Aircraft contain all kinds of wonderous indicators and instruments to measure velocity, altitude, weather conditions, etc. Moving air from outside feeds into the pitot tubes and fills a pressure diaphragm. A plane’s specific stall speed depends on the plane’s size, dimensions, and even weather conditions.

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The Classic Boeing Airspeed Indicator

AeroSavvy

Airlines are upgrading older cockpits with newer displays, so this old indicator will soon become a relic. Ram air from a pitot tube and static (undisturbed) outside air from a static port, usually a hole on the side of the fuselage. The speeds are based on aircraft weight and performance (affected by runway and weather).