The Mode Control Panel, or MCP, is an essential component in modern aircraft that manages advanced autopilot functions. It also oversees related systems like the automated flight director system (AFDS) and auto-throttle. Different aircraft manufacturers may refer to the MCP by various names, but its primary function remains the same: it allows the flight crew to select which aspects of the aircraft’s flight should be automated.
In contemporary MCPs, pilots have access to numerous automation modes. The mode selector controls enable them to choose specific roll and pitch modes for the autopilot and to toggle the auto-throttles when they are installed. Basic inputs such as heading, speed, vertical speed, and altitude can be easily entered. Once activated, the aircraft’s computers adjust the pitch attitude, heading, and thrust to meet the chosen parameters.
Using these modes does not require a vertical or lateral profile to be input into the Flight Management System (FMS). Instead, the MCP can command the autopilot to maintain a certain altitude, change altitudes at designated rates, hold a specific heading, or follow instructions from the flight management computer (FMC).
It’s important to note that the MCP operates independently of the autopilot. While it sets the operational mode for the autopilot, the autopilot itself, such as the AFDS, functions as a distinct system within the aircraft. The MCP typically interacts with both the AFDS or autopilot and the FMC(s), enhancing overall flight management.
MCPs are usually mounted on the glare shield, a panel that extends over the main instrument panel. This placement helps reduce glare from outside sources, ensuring better visibility for the flight crew.
