Definition
In an autopilot system, flight computers are the electronic processing units that receive inputs from the aircraft's sensors and pilot-selected commands, compare the aircraft's current state to the desired state, and send corrective signals to the servos that move the flight controls.
Plain English
The 'brains' of the autopilot. They take in information about how the aircraft is flying, compare it to what the pilot has told the autopilot to do, and then tell the control-moving motors what adjustments to make.
Context Anchor
Seen in autopilot and integrated flight deck discussions, where the handbook explains how the aircraft’s automatic systems decide what commands to make.
Derivation
Computer comes from the Latin computare, meaning “to count or calculate.” That helps here because flight computers are not just screens or boxes; their main job is to calculate what guidance or control action is needed in flight.
Why Pilots Care
When something in the autopilot misbehaves — a wrong heading capture, an unexpected pitch change — the flight computer is usually where the logic lives. Knowing it sits between the sensors and the servos helps the pilot understand why disconnecting the autopilot returns full manual control immediately.
Intuition Check
Do not assume “flight computers” means a handheld E6B, tablet, or laptop. In this autopilot context, it means installed aircraft computers that process flight information and support automatic control.
Example Sentence 1
The flight computer compared the aircraft's actual heading to the selected heading and commanded the aileron servo to roll into a gentle left turn.
Example Sentence 2
During cruise, the flight computers continuously adjust power and pitch to optimize fuel burn.