FIELD: calculating; counting.
SUBSTANCE: invention relates to the field of navigational instrument-making and can be used in systems and methods of generating two independent unequal values of spatial position, two independent unequal inertial values or both, using one improved navigation device. For this purpose, the on-board aircraft equipment system comprises: an inertial navigation device configured to generate a first group of spatial position values; attitude-and-heading reference system, made with possibility of creation of primary group of values of spatial position and secondary group of values of spatial position; and a display device configured to receive a first group of spatial position values, primary group of values of spatial position and secondary group of spatial position values, wherein if first group of spatial position values and primary group of values of spatial position give different results, then display device determines which of the first group of spatial position values and the primary group of spatial position values is correct by determining differences between spatial position values and detection, which of the differences is below the threshold value.
EFFECT: technical result is expansion of functional capabilities.
20 cl, 2 dwg
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