Domanda 211, Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license

The gyroscopes and accelerometers are part of the unit's fixture to the aircraft structure.
Gyros and accelerometers need satellite information input to obtain a vertical reference.
Gyros and accelerometers are mounted on a stabilised platform in the aircraft.
Only the gyros, and not the accelerometers, are part of the unit's fixture to the aircraft structure.