2019年9月6日 · Directional gyros, also called heading indicators or direction indicators, are the fastest moving component in a piston-powered aircraft. They can spin at up to 24,000 rpm, and are among a plane’s most critical systems.

The heading indicator works using a gyroscope, tied by an erection mechanism to the aircraft yawing plane, i. e. the plane defined by the longitudinal and the horizontal axis of the aircraft. As such, any configuration of the aircraft yawing plane that does not match the local Earth horizontal results in an indication error.

Gyroscopic direction indicators are located at the center base of the instrument panel basic T. A vacuum-powered DG is common on many light aircraft. Its basis for operation is the gyro’s rigidity in space. The gyro rotor spins in the vertical plane and stays aligned with the direction to which it is set. The aircraft and instrument case ...

2022年6月12日 · The 3 main gyroscopic instruments found on aircraft are the artificial horizon, the heading indicator, and the turn coordinator. All three use gyroscopic axes to provide a datum from which the aircraft’s orientation can be measured. More advanced systems can also be found on complex aircraft.

Three of the most common flight instruments, the attitude indicator, heading indicator, and turn needle of the turn-andbank indicator, are controlled by gyroscopes. To understand how these instruments operate, knowledge of gyroscopic principles and instrument power systems is …

2024年8月29日 · The heading indicator (HI), also known as the directional gyro (DG) or direction indicator (DI), is an essential tool for accurate aircraft navigation. It offers a stable, reliable alternative to the magnetic compass, making it vital for maintaining heading, especially in low-visibility conditions.

1999年2月23日 · Air or electricity supply the power to operate gyro instruments in light aircraft. If the directional indicator and attitude indicator are air-driven (as they generally are), the turn-and-slip indicator is electrically powered.

Examples of such instruments include attitude indicators, heading indicators and turn coordinators (turn and slip indicator). The gyroscopes within the instruments are usually electrically or vacuum driven and make use of the basic gyroscopic principles to display the attitude of the aircraft.

2023年8月1日 · The heading indicator (also known as a gyro) is a critical instrument in aircraft navigation, providing pilots with accurate information about the aircraft's direction of travel. Accurate information is essential for maintaining straight and level flight paths, avoiding collisions, and ensuring safe navigation during flights.

A gyroscopic direction indicator is augmented by magnetic direction information from a remotely located compass. The type of compass used is called a flux valve or flux gate compass. It consists of a very magnetically permeable circular segmented core frame or spider.