FS2002 ProjectAI JAL Japan Airlines J-Air Jetstream JS-41. The British Aerospace BAe Jetstream JS-41 is a twin-engined regional-route aircraft powered by two Honeywell TPE331-14 engines. Normal cruise speed is 240 to 270 kts with a range of 1490 nm (60% load). This aircraft first flew in September 1991. It is a derivative of the Jetstream 31 with a longer fuselage and a modified wing and tail. The J41 is operating throughout the world in 29/30 seat commuter and 14-seat corporate shuttle configurations.