Apparatus and instruments for navigation including marine and land-based navigational apparatus and equipment; navigational apparatus and instruments for automobiles; electronic and electric navigation apparatus; digital navigational apparatus and equipment; gyroscopes for use in stabilisation and navigational systems; inertial navigation apparatus and instruments; navigation apparatus for vehicles (on-board computers); navigation compasses and sextants; navigation computers and software for vehicles; data storage apparatus and instruments for use in vehicles for collection, storage and tracking of vehicle activity provided from a computer database or the Internet; navigation systems using inertia reference; navigation systems using satellite reference; navigation systems provided from a computer database or the Internet; radar apparatus for use in navigation; radio transmitters for navigational use; route planning apparatus and equipment; road map display apparatus for assisting in the navigation of a vehicle; satellite navigational apparatus; global positioning systems for vehicles including GPS antennas and sensors; differential beacons; receivers for tracking and locating vehicles; network communication modems; aerials, GPS aerials; electrical and electronic communications equipment; real-time data collection and communication equipment; satellites and satellite communicating equipment; parts and fittings for all the aforesaid goods