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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.
Year of first flight Introduction Number built Platt-LePage XR-1: Experimental helicopter 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 ...
On 11 December 1951, the Kaman K-225 became the first turbine-powered helicopter in the world. Two years later, on 26 March 1954, a modified Navy HTK-1, another Kaman helicopter, became the first twin-turbine helicopter to fly. [97] However, it was the Sud Aviation Alouette II that would become the first helicopter to be produced with a turbine ...
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]
The United States Marine Corps ' s first transport helicopter squadron, Marine Transport Helicopter Squadron 161 (HMR-161), conducts history's first mass helicopter resupply mission in Operation Windmill I, lifting 18,484 pounds (8,384 kg) of equipment to a U.S. Marine Corps battalion on the front line in Korea and evacuating 74 casualties, all ...
Stanley Hiller was born November 15, 1924, in San Francisco, California, to Stanley Hiller, Sr. and Opal Perkins.The family moved to Berkeley, California, in the 1930s.. At the age of 15, he designed the world's first successful coaxial helicopter, and produced a working model.
The Hiller YH-32 Hornet (company designation HJ-1) is an American ultralight helicopter built by Hiller Aircraft in the early 1950s. It was a small and unique design because it was powered by two Hiller 8RJ2B ramjet engines mounted on the rotor blade tips which weigh 13 lb (5.9 kg) each and deliver an equivalent of 45 hp (34 kW) for a total of 90 hp (67 kW). [3]
In January, 1949, a Hiller 360 became the first civilian helicopter to cross the United States. [2] Besides helicopters, in the year after World War II, Stanley Hiller researched a two-man rocket-jet aircraft design that took off and landed vertically, called the VJ-100, in which he tried unsuccessfully to interest the U.S. military. [3]