First some one said that the catapults were air pressurized and there not they are steam pressurized. The f-16 is capable of doing mach2 however the F-22 has never gone that high . It only did mach 1.8 unless they went higher and i dont know about it. The F-15 does mach 2.5 now thats fast . The SR71 went mach 3.1 and it did Los Angeles to New York in 68min flat . Scram jets do not exist yet they are only concepts . If you want to beat a jet on a catapult then you need only one thing a HEMI . They put a top fueldragster(they us American engines) vs an F-16 on a catapult and the jet got smoked until it took off . A jet on a catapult will put a load of about 3G's were as a top fuel dragster will put a 5G load on you.