Short History

The Douglas A-4 Skyhawk is a ground attack aircraft designed for the United States Navy and Marine Corps. The delta winged, single-engine A-4 was designed and produced by Douglas Aircraft Company’s chief designer Ed Heinemann. The aircraft was later produced by McDonnell Douglas. The A-4 was originally designated the A4D under the Navy’s pre-1962 designation system. The A-4 was in response to a call by the US Navy for a jet-powered attack aircraft to replace the older Douglas Skyraider. Ed Heinemann opted for a design that would minimize size, weight and systems complexity. The little Skyhawk quickly began to be called by other nicknames such as “Scooter”, “Kiddiecar”, “Bantam Bomber”, “Tinker Toy Bomber”, and one of its more famous of nicknames, “Heinemann’s Hot Rod”.

The AN/APG-66 radar system was developed by Westinghouse (now Northrop Grumman) in the 1970’s for use in the General Dynamics (now Lockheed Martin) F-16 Fighting Falcon, and entered service in 1979. The radar was utilized in both the A and B versions of the F-16, and was later replaced by the AN/APG-68 system. The AN/APG-66 weighed in at 362 pounds and was a multi-role, x-band unit with a range of 160 nautical miles. In addition to the F-16 A and B, variants of the radar was also installed on the F-4EJ (Japanese export version of the Phantom II), British Hawk 200, US Navy T-39N, and New Zealand A-4 aircraft. The modes of operation were range-while-scan, track-while-scan, velocity search, and gun director.