相关题目
When properly set, （ ） is the primary source of heading information.
Which of the following about gas turbines on A/C is not right?
The （ ） is the only flight instrument that provides both pitch and bank information. It uses an artificial horizon and miniature airplane to depict the position of the airplane.
The （ ） was one of the first instruments to be installed in an airplane, and it is still the only direction seeking instrument in many airplanes.
The （ ） , also called a directional gyro, senses yaw movement of the airplane about the vertical axis.
The （ ） is a vacuum-powered instrument which senses pitching and rolling movements about the airplane＇s lateral and longitudinal axes.
The （ ） senses yaw and roll movement about the vertical and longitudinal axes.
The （ ） measures how fast the ambient air pressure is increasing or decreasing when the aircraft climbs or descends.
Which of the following is not included in gyroscopic instruments?
The three gyroscopic instruments are （ ） ．
