Which GTG monitors the operation of the GTE, gear, and reduction gear box?

• A. RIMS
• B. LOCOP
• C. FADC/LOCOP
• D. OMS

Answer: (C)

The operation of the GTE, gear, and reduction gearbox is overseen by a combination of control and local indication systems. The best choice pairs FADC with LOCOP because together they cover both the automatic control of fuel and air data and the local way to monitor and command the system.

FADC handles the fuel/air data control, regulating fuel flow and monitoring key turbine parameters to keep the engine running safely and efficiently. It provides the commands and limits needed to maintain proper speed, temperatures, and overall turbine health. However, without a local interface, those data and commands would lack a direct, on-site way to view and respond to the engine’s status.

LOCOP (Local Control/Operation Panel) gives the operator immediate visibility into the GTE, gear, and gearbox status and allows direct control actions like start, stop, and gear engagement. It presents the real-time readings and annunciations from the GTE and its gear train so issues can be spotted and addressed quickly.

Other systems have narrower roles: RIMS mainly handles remote instrument monitoring, and OMS focuses on lubrication/oil-related concerns. Neither alone provides the full combination of fuel/air data control and local operational visibility needed to monitor all three components.