Aerospace Instrument-Making Annotation << Back DETERMINATION OF THE MAGNETIC DEVIATION OF THE EXCHANGE RATE SYSTEM OF THE AIRCRAFT О.В. Skudneva The article shows the value of the Earth magnetic field (EMF) for the azimuthal orientation of manned aircraft) and unmanned aerial vehicles (UAVs). Operation of the exchange rate system based on the Autonomous determination of the course LA of the angle between the horizontal component of the EMF intensity vector and the longitudinal axis LA during the whole flight. The designs of LA in the place of installation of the sensor the magnetic course to the distortion direction of the vector of MPZ, which may lead to errors in determining the course and significant errors in the navigation of the aircraft. Discusses the General characteristics of the mPas. Given the Poisson equation for the determination of the magnetic deviation and shows the complexity of the implementation of its decommissioning, the operating conditions of the aircraft. In this connection scientists and engineers developed the approximate formulae based on the determination of the coefficients of deviation and implemented techniques of the cancellation of magnetic deviation LA. To reduce the complexity and increase the accuracy of determining the magnetic exchange rate systems are based on various formulae and methods for determining and cancellation of magnetic deviation. Including using high-precision gyro direction and the true course defined by the inertial system installed in-house or for technological purposes. Describes the definition and the cancellation of magnetic deviation with the use of satellite systems, inertial sensors and using the capabilities of the onboard digital computer and navigational equipment of the aircraft. This solution allows automatic detection and cancellation of magnetic deviation, the mode of payment of deviation, without any terrestrial and extra work. The article is designed to develop manuals to familiarize students with the work of the real exchange rate systems, but can also be useful to developers and maintainers of navigation and flight equipment of the aircraft. Keywords and their abbreviated name: Aircraft – LA, the Earth’s magnetic field - EMF, unmanned aerial vehicle – UAV, the vector strength of the external EMF, true heading, magnetic heading, magnetic declination, magnetic inclination and magnetic deviation. DOI: 10.25791/aviakosmos.04.2019.601 Contacts: E-mail: chykchyk@yandex.ru Pp. 03-15.