The Saro Skeeter was designed in 1948 by the Cierva Autogiro Company, the first prototype flew on the 8th of October 1948, production aircraft were were eventually built by Saunders-Roe ("Saro") in Cowes and Southampton in England following their takeover of Cierva in 1951, a total of approximately 80 helicopters being produced, 64 of which were supplied to the British Army.
The Hughes company's longest running helicopter program began in the early 1960s when Hughes won a U.S. Army competition to produce the OH-6A Cayuse light observation helicopter. The company built more than 1,400 OH-6As through that decade.
The Sikorsky S-64 Skycrane is an American twin-engine heavy-lift helicopter. It is the civil version of the United States Army's CH-54 Tarhe. The S-64 Aircrane is the current production version, manufactured by the Erickson Air-Crane company.