The sources of systematic and random errors of a dynamic fiber-optic g
yrocompass have been studied theoretically and experimentally. The min
imum possible error of determining the azimuth for the fiber-optic gyr
oscope used in the gyrocompass was estimated as 0.2 degrees, and the e
xperimentally measured value was 0.6 degrees. (C) 1997 The Optical Soc
iety of America.