@GreatKhan but you do have to take into fact that the you go the less thicker the air is and that Mach was measured at ground level but thx I didn't take into consideration anything above 15000 ft because I never really go that high

@ReaperSpitz lol

@GreatKhan oop I rarely ever go that high lol

@ReaperSpitz it exceeds mach 1 at 773 mph at 20k ft

Mach 1 is 767 mph

@GreatKhan like I said I purposely made it look like the mig-21 pretty much it's a downgraded version of it actually

@GreatKhan this plane isn't supersonic I think it's max speed at 5000 feet is about 540 knots Mach 1 is 667 knots yes it looks like the mig-21 but it's not a gen 2

@ReaperSpitz Isnt the MiG-21 a gen 2 jet? Pretty sure gen 1's arent capable of supersonic flight.

@MisterB that was the point lol. however there are a few differences having 2x21mm guns and wings are sweeped back a little

That looks a lot like a MiG 21 imo