|Author||: C. A. Williams|
Aircraft Instruments (English) by C. A. Williams.
This book(Aircraft Instruments) is developed to an explanation of the principles of general-purpose instruments used in aircraft to-day, and of the rules and procedures governing the maintenance of those instruments. As such, it is intended for use by airline instrument engineers, and by all who are interested in, or concerned with, general instrument practice.
Flight instruments are the instruments in the cockpit of an aircraft that provide the pilot with information about the flight situation of that aircraft, such as altitude, airspeed and direction. The flight instruments are of particular use in conditions of poor visibility, such as in clouds, when such information is not available from visual reference outside the aircraft.
The term is sometimes used loosely as a synonym for cockpit instruments as a whole, in which context it can include engine instruments, navigational and communication equipment.
Many modern aircraft have electronic flight instrument systems.