NATOPS
Naval Air Training and Operating Procedures Standardization
NATOPS Definition
A positive approach toward improving combat readiness and achieving a substantial reduction in the aircraft mishap rate.
In manual mode (STAB) the following are not recommended:
Navigation Subsystem
2 EGIs 2 Air Data Computers (ADCs) Air Data Transducer (ADT) Air Speed Computer TACAN Set Direction Finding Group (DFG) RADALT AFCS/AFCC DTIU GAS-1
Communications Subsystem Backup and Failure Modes