I have Flight Sim 2004 with 3 add ons that i really like. I added the SR71,the bush pilots adventure add on,and a military aircraft add on.The SR is a real blast. Cruise at about 80,000,ground speed of mach 3.3,indicated air speed of around 225. I have had it up to 105k feet,but it's not real stable at that altitude.At altitude the fuel consumption is really low. I used to do little 1 hour flights starting with a full fuel load,and by the time I got to my destination,I couldn't slow down enough because of the weight of the extra fuel.Once I did a flight from Eglin AFB to McDill AFB,and wound up overshooting Tampa,finally slowing down over Orlando. No flaps or speedbrakes,so you have to start your descent early.PC Aviator has lots of flight sim add ons.Check them out. I have the new Flight sim on the way.Looks great! Anybody interested in online combat with CFS2 or 3?