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It has been answered for big aircraft, so just as a sidenote: Multicopters ("drones") have accelerometers (and other sensors) as integral part of their flight computer. Without it they would drop from the sky pretty quickly.


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When I worked in the industry in the early 2000s, Eurofighters had g-sensors recording during flight, and put you into a different engine service regime above a certain limit. There was a matching detent on the stick (not sure if virtual or physical) that warned pilots if they were going to go over the limit. Twenty years on, given the cheapness of modern ...


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Depends on the aircraft in question. Airplanes used for aerobatics or military fighters will commonly carry them as a reference for pilots on just how hard they’re loading the airplane at any one time, though many good aerobatic pilots have enough time that they can kinesthetically sense just how hard they’re loading the airplane. Transport category ...


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Most modern aircraft, which includes long range airliners since around 1970, all airliners since not much later, and basically anything with glass cockpit, do have very accurate accelerometers for all three axis, as part of the inertial reference system. They are important instruments for the autopilot, as they provide faster feedback on the effect of ...


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Of course they do. You can find them in just about any cockpit from the modern aircraft of today down to about the 1930's. Here's an example.


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I think you need to define "modern" aircraft, the question is pretty broad as-is. And even interpretation of what you mean could vary. i.e. are you referring to a real time dial showing actual Gs in the cockpit? As quiet flyer noted, as a reference instrument an accelerometer is very important for aerobatic flight. However, while a real time ...


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It is a very good question, in light of what happened with the Lion Air flight 610 crash. Caused by a single mis-calibrated AoA sensor, resulting in 189 deaths. Single inputs into flight automation are allowed, if the single input can be safely disregarded by the on-board systems. A safety analysis will take into account: what the consequences of the ...


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My answer assumes that you're asking about having IMUs measure angular acceleration instead of angular rate; if meant they should measure angular acceleration in addition to angular rate, then I apologize for misunderstanding you. However, having available the angular acceleration would be useful for a more precise kinematic model when integrating to find ...


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