exdeath
Lifer
Originally posted by: 91TTZ
Originally posted by: exdeath
I'm aware the numbers are only public data. Just the mach 1.8 max for the Raptor seems ridiculous given that it has at least 10,000 lbs thrust more than the F15 and is lighter and stronger... and come on, if it can supercruise at 1.5 that means full after burner only adds 0.3 mach? I don't think so... clearly the top performance numbers are classified.
The top speed is limited by safety and design constraints. On some aircraft, like the B-1B bomber, older versions could go Mach 2.5 while new versions are subsonic. They have the same engines, the only reason is that they switched to non-movable engine inlets.
I don't think the F-22 has movable inlets, and the materials used for the aircraft would become too hot at high speeds (lots of composites compared to aluminum for older aircraft). So it's probably either inlet limited or safety limits, the flight control system not letting it go any faster for safety reasons.
I must have taken it for granted that the F-22 would have variable inlet ramps if it's replacing the F-15... lack of variable intake would limit the top speed of the F-22 to about mach 2.
I really hope they decide to keep the F-15s in service then instead of replacing them. No need to drop them since they are still the world's premiere fighter compared to what everyone else has.