– FS2004 StoneAir Stingray flight2000it 17 years ago FS2004 StoneAir Stingray concept jet. An imaginary supersonic transport with a top cruising speed of mach 4.69 which appears to be as fast as FS2004 will allow. Optimum altitude is 70,000 feet. By Mike Stone. 500 Kb FSX/FS2004 – Supermarine Sea OtterFS2004 – Taos Regional AirportFS2004 – Kishangarh Airport