Simply put, what is the maximum possible airspeed that FS9 will allow? I have long been under the impression that the Mach ceiling is somewhere around M4.5, but a discussion on another forum has me wondering if this is the case. Thanks for any insight you can offer.jt

You should probably ask in the FS9 forum. Just a thought :)btw I don't know the answer to that. I always assumed there wasn't a max possible speed.James

I think you posted this in the wrong forum. Anyway, if you slew, you can go 20000+ knots so that's probably mach 10 at least. I doubt there is any max speed limit. Probably only limited by your airplane.I've personally never exceeded mach 2 in FS. I should get the SR-71 out and go faster though.RhettAMD 3700+ (@2310 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2 GB Corsair XMS 2.5-3-3-8 (1T), WD 250 gig 7200 rpm SATA2, CoolerMaster Praetorian case

uhhh. . . this IS the FS9 forum. . .:-beerchugpj

I have gone to roughly 3600 mph in a recreation of the "Lost in Space Jupiter 2". But that's groundspeed, not airspeed, and I had to climb to 80,000-90,000 feet to attain such a groundspeed.-John