CG Wallpaper of A4 Skyhawk. This Aircraft is designed byDouglas Aircraft’s Ed Heinemann for the United States Navy and U.S. Marine Corps. It was originally designated the A4D under the US Navy’s pre-1962 designation system. Fifty years after the aircraft’s first flight, and having played key roles in the Vietnam War, the Yom Kippur War, and the Falklands War, some of the nearly 3,000 Skyhawks produced remain in service with several air arms around the world, including active duty on the aircraft carrier São Paulo of the Brazilian Navy.