Slight drift (off subject)
In the land of airborn stabilised platforms (gimbals) for use by TV police and military, in general two categories of gyros have been in use. ITAR and non ITAR restricted.
In general ITAR restricted gyros are significantly better than others, one can see the difference in picture stability when using the equipment.
(ITAR restricts the export of particular components or equipment with components installed to countries that are not friendly with the western world)
Which type of gyros are in use in Airbus and Boeing ADIRUs?
Mickjoebill