Sep 20, 2020 · My understanding of the Gyroscopic Attitude Indicator is that it is free to move relative to the fuselage in all three axis of motion until you go past 60° in any of the directions of motion. No outside force is applied to the gyroscope until the mechanical limitations of the instrument are reached.

Jun 29, 2015 · The attitude indicator is very important for any sort of instrument flying, so it must be accurate at all times regardless of the plane's movements. I presume that the indicator would be connnected to a gyroscope. However, gyroscopes drift, and a drifting attitude indicator would be pretty useless.

Nov 8, 2021 · Looking at an article in Flight magazine from March 1945 titled "Sperry Attitude Gyro" that you can find online, the picture of the instrument is interesting: It seems that the orientation of the sphere was upside-down compared to current convention. The dark "earth" was the top part of the sphere and the light "sky" the bottom.

Dec 3, 2023 · A gyro spinning slower than normal will cause the attitude indicator to be sluggish to respond and slowly fall out of position. Worn-out bearings on the gyro mean it won't be able to spin as fast as it should to maintain the required RPMs to display a true attitude. The indicator's slow falling out or sluggish movement is known as precessing.

Nov 17, 2022 · The standby attitude indicator on the Lear 35 has its own power switch; it's not automatically energized when the battery masters come on. Therefore it doesn't spin up on its own when power is applied to the rest of the aircraft.

Apr 19, 2015 · A healthy attitude indicator will become erect almost immediately. If it wobbles for more than a short moment, be suspicious. Also become suspicious when a gyro become loud or whines. You should be able to hear the gyro if you get …

May 23, 2018 · On a real Western digital Attitude Indicator (display), that little aircraft silhouette in the middle might not be very distinct, as depicted on your original image. It can be also obstructed by Flight Director bars. As Ben pointed out, the most predominant line you might see is the horizon line. The horizon line is what's moving on a Western ...

Aug 18, 2023 · The extremely fast spinning gyro remains in the same orientation in space as the instrument case moves around along with the instrument panel and the whole aircraft. The difference between the orientation of the gyroscope and the casing is mechanically or electronically transformed to display the orientation of the plane

Jan 26, 2020 · That attitude gyro reacts in the opposite manner to pitch movement (pitch down = horizon line rolls DOWN) compared to the "conventional" manner (pitch down, horizon line rolls UP). This is sufficiently confusing that on similar gyros of American manufacture, the words CLIMB and DIVE are printed on the "ball" inside the gyro case to remind the ...

Jun 6, 2017 · I have a hard time understanding the physics behind the pneumatic erecting system in an attitude indicator. According to my book and the linked image, the applied force is “precessed 90 degrees” (anti-clockwise seen from above) and thus re-aligns the gyro.