The A-4 Skywalk was a lightweight beast when it was introduced in the 1950s. Here's its top speed, which even set a world ...

the Douglas A-4 Skyhawk went on to play a key role in the Vietnam War as the U.S. Navy's first-line aircraft, where it was noted for its unusual accuracy in attacking selected ground targets.

The A-4 Skyhawk is a classic icon of naval aviation but did you know it was one the pioneering jets of aerial refueling too?