The 3M2-13 is an on-board aircraft computer system manufactured by Honeywell. The system is designed to provide the flight control and management system the pilot needs to navigate and control an aircraft. It includes an integrated navigator, an autoflight system, and an air data computer all housed in a single compact unit, making it one of the most sophisticated systems available. The system features a range of customizable options, allowing it to be modified to fit the requirements of any particular plane, including aircraft size, altitude control, and route planning. The system also includes multiple failsafe features, ensuring a safe journey for both plane and crew.