Summary and Key Points: The F-111 Aardvark was retired in 1998 primarily due to a “maintenance crisis” and the aging architecture of its 1960s-era variable-geometry wings. -Despite being the most ...

Summary and Key Points: The F-16XL remains one of American aviation’s great “what-ifs”—a stretched F-16 with a distinctive cranked-arrow wing built as a low-risk, high-performance strike concept. -Two ...