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The R-4 was the world's first large-scale mass-produced helicopter and the first helicopter used by the United States Army Air Forces, [1] the United States Navy, the United States Coast Guard and the United Kingdom's Royal Air Force and Royal Navy. In U.S. Navy and U.S. Coast Guard service, the helicopter was known as the Sikorsky HNS-1.
Platt-LePage Aircraft Company: First helicopter tested by the USAAF. [1] 1941 Never 2 Sikorsky R-4: Sikorsky Aircraft Corporation: World's first large-scale mass-produced helicopter and the first helicopter used by the United States Army Air Forces. [2] 1942 Unknown 131 Sikorsky H-5: Sikorsky Aircraft Corporation 1943 1945 300 Sikorsky R-6
It is the first member of the prolific Huey family, as well as the first turbine-powered helicopter in service with the United States military. Development of the Iroquois started in the early 1950s, a major impetus being a requirement issued by the United States Army for a new medical evacuation and utility helicopter.
Bell Helicopters was the winner of a 1963 United States Air Force competition for a support helicopter for use on its missile bases. [ 3 ] Bell had proposed the UH-1B for the competition but the USAF asked Bell to develop a special version of the "Bravo" in using the General Electric T58 turboshaft as a powerplant.
The S-52 was the first US helicopter with all-metal rotor blades. Initially a two-seater, it was developed into the four-seat S-52-2 and S-52-3. It was designated HO5S-1 by the U.S. Navy and Marine Corps, HO5S-1G by the Coast Guard, and YH-18A by the U.S. Army , and was used extensively by civil operators after being retired by the military.
The linchpin of US Army tactics was the helicopters, and the protection of those helicopters became a vital role. [2] It became clear that unarmed troop helicopters were vulnerable against ground fire from Viet Cong and North Vietnamese troops, particularly as they approached landing zones to disembark or embark troops.
The United States Army first ordered Bell 47s in 1948 under the designation H-13. These would later receive the name Sioux. [3] Initially, the United States Navy procured several Bell 47s, designated HTL-1, between 1947 and 1958. The United States Coast Guard evaluated this model, and procured two HTL-1s for multi-mission support in the New ...
The Sikorsky HH-52 Seaguard (company designation S-62) is an early amphibious helicopter designed and produced by American helicopter manufacturer Sikorsky Aircraft. It was the first of the company's amphibious rotorcraft to fly and the United States Coast Guard's first turbine-powered helicopter and first amphibious helicopter. [1]