Controller is a real-time simulation in which you have to guide the approach and landing sequence of up to 8 aircraft. There are three types of aircraft; light planes, airliners and private jets. Each type has a different rate of climb, turning ability, stall speed, ceiling, fuel consumption and fuel capacity. Controller transforms your microcomputer screen into a realistic 'radar scope'. Each aircraft's heading, velocity and altitude is continuously displayed on a separate chart next to the radar scope.