The dynamical characteristics of a Hooke's joint gyroscope with non-orthogonal flexure axes are described. The natural frequencies of the gyroscope are shown to vary with the amount of non-orthogonality present, but the tuning conditions and the conditions for the suppression of drift resulting from twice spin speed angular vibration are shown to be independent of non-orthogonality. For both the tuned and untuned cases, the response to an applied rate of turn has been assessed and errors arising from flexure axis non-orthogonality are identified.
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