Definition
An onboard digital control unit that automatically regulates fuel flow and other operating parameters of a jet engine based on inputs such as throttle position, air temperature, pressure, and engine speed. It schedules fuel delivery to keep the engine within safe operating limits and to produce the thrust commanded by the pilot.
Plain English
A small computer that manages the jet engine for the pilot. The pilot tells it how much thrust is wanted by moving the throttle, and the computer works out exactly how much fuel to send and adjusts things automatically so the engine runs safely and efficiently.
Context Anchor
Seen in jet engine operating discussions, especially when the handbook explains how modern turbine engines manage power, starting, and engine protection.
Derivation
Electronic comes from the use of electrical signals. Computer originally meant something that calculates. In this term, the idea is practical: the unit receives electrical information from the engine, calculates what the engine needs, and sends commands back to engine systems.
Why Pilots Care
It reduces pilot workload, prevents engine damage from incorrect settings, and enables precise performance across changing flight conditions.
Intuition Check
Do not picture a laptop or a general cockpit computer. Here, “computer” means a built-in engine control unit whose job is to manage the engine.
Example Sentence 1
When the pilot advanced the throttle, the electronic engine computer scheduled the fuel flow to bring the engine smoothly up to takeoff thrust.
Example Sentence 2
On engine start, the electronic engine computer sequences ignition and fuel introduction to ensure a stable light-off.