Aircraft use a number of sensors to measure and sense critical parameters during flight. The information provided by these sensors is crucial for a safe flight. This research service discusses the market revenue, forecasts, and units of 11 different sensors used in 2 different types of aircraft (commercial and general). With the commercial aircraft segment experiencing increased production rates (above 1,000 aircraft per year), the introduction of the next-generation aircraft, and the need for more fuel-efficient aircraft, it is expected that the importance of sensors will continue to increase both in numbers and value.