How does the FADEC tie into the throttle?

• A. A FADEC is mounted on each engine and provides full control of the engines based on throttle lever position.
• B. The FADEC is a central unit that controls steering.
• C. The FADEC is only a sensor module with no control function.
• D. The FADEC governs fuel flow to wingtip devices.

Answer: (A)

The main idea is that FADEC provides full authority control of each engine and uses the throttle lever position as the input to determine engine operation. On the Growler, each engine has its own FADEC, which takes the throttle lever position as the pilot’s commanded thrust and translates it into precise fuel metering and engine speed targets (like N1). FADEC also handles ignition timing, start sequencing, transient response, and protective limits, so the throttle position directly governs engine performance through the FADEC rather than through manual, mechanical metering. This setup gives consistent, optimized engine response and safeguards the engine from overlimit conditions.

The other statements don’t fit because FADEC is not about steering control, it’s not merely a passive sensor module, and it doesn’t manage fuel flow to wingtip devices. It is the active, engine-focused control unit that governs how much fuel the engine receives and how it responds to throttle input.