Shown here are three different types of Douglas AD Skyraider of the U.S. Navy's composite squadron VC-33 in flight hear Naval Air Station Atlantic City, New Jersey (USA), in 1955: (left to right) an AD-3Q electronic countermeasures aircraft, an AD-4N night attack aircraft, and a wide-body AD-5N. USN photo from the U.S. Navy Naval Aviation News June 1955.