the F-22, as far as i know, wasn't intended to be as stealthy as say the F-117 or B-2, they just wanted it to have a smaller RADAR cross section than most planes, and Glider, they do fit RADAR reflectors to the F-117, i dunno about the B-2 though, they're baisically small domes above the air intakes, i dunno what's in them, but they give it a normal RADAR signature.............