 CONT: In the Season 4 episode "Angel Maintenance", at several points  during the episode various characters refer to the jet fighter  attempting a visual inspection of Air Force one as an F16 or Falcon  (meaning an F16 Fighting Falcon). However, the plane, when seen  through the window by the assembled press pool, is clearly an F15  Eagle, a much larger aircraft that looks nothing at all like an F16.  The same error of aircraft identification occurs in the first  episode of season four.