Abstract: Disclosed is an autonomous landing system for landing a vertical take-off and landing (VTOL) aircraft. The autonomous landing system may include a flight control system having radar sensors, altimeters, and/or velocity sensors. The flight control system can include a processor to provide pitch, roll, and yaw commands to the VTOL aircraft based at least in part on data from the radar sensors, the altimeters, and/or the velocity sensors. The flight control system can be used to navigate and land the VTOL aircraft on a movable object, such as a ship.