Here’s What You Need to Know: The X-5 was likely the world’s first airplane that incorporated variable-sweep wing technology. The X-5 was likely the world’s first airplane that incorporated ...

Here’s What You Need to Know: Lessons learned from the X-5 design proved to be useful both for the United States Air Force and for foreign airplane designs. The X-5 was likely the world’s first ...

Key Points - The General Dynamics F-111 "Aardvark," born from the 1960s TFX program, was a groundbreaking tactical strike aircraft and the first production plane to feature a variable-sweep wing.