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- [21] F-22 Raptor meets first-flight goals Aviation Week and Space Technology (New York), 1997, 147 (11):
- [23] Strengthened F-22 to focus on high-speed tests Aviation Week and Space Technology (New York), 2000, 152 (12):
- [25] F-22's EW modules may aid other aircraft Aviation Week and Space Technology (New York), 1993, 139 (01):
- [26] F-22 test plans on schedule, first flight on track for May AVIATION WEEK & SPACE TECHNOLOGY, 1997, 146 (01): : 48 - 49
- [30] Strengthened F-22 to focus on high-speed tests AVIATION WEEK & SPACE TECHNOLOGY, 2000, 152 (12): : 85 - 85