An instrument displaying a line on a flight indicator that lies within the horizontal plane and about that the pitching and banking moves of an aircraft are shown. Also known as gyro horizon.
An instrument that shows the pitch and roll of an aircraft in flight by comparing its mindset to a gyroscopically-maintained indicator associated with level horizon range.
an amount mirror, while the area of mercury in a shallow vessel, or a plane reflector adjusted to your true amount unnaturally; -- made use of mainly with all the sextant for observing the double height of a celestial body.
a navigational tool centered on a gyroscope; it unnaturally provides a simulated horizon for pilot