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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.
The helicopter would hold only the pilot and no passengers. Sikorsky reported an operating time of 12 to 15 minutes and a top speed of 80 kn (150 km/h; 92 mph). [2] It was expected that the helicopter would make its first flight in late 2010 or early 2011. [1] For undisclosed reasons, the helicopter was never flown and the project is now ...
U2 3D was the first live-action film to be shot, posted, and exhibited entirely in 3D, [129] the first live-action digital 3D film, [130] and the first 3D concert film. [131] Regarding its production, it was the first 3D film shot using a zoom lens , [ 132 ] an aerial camera , [ 133 ] and a multiple-camera setup . [ 130 ]
Illumination, maker of “Despicable Me,” “Sing” and “The Super Mario Bros. Movie,” has built its animation empire by mostly staying close to a child-like outlook. Illumination’s in ...
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 ...
She posthumously became the first female member of the Armed Forces of the Philippines to receive the Medal of Valor. [23] April 13: A Bell 250 helicopter carrying staff members of President Gloria Macapagal-Arroyo plunged amid zero visibility into the Cordillera mountains in Bokod, Benguet. Despite the helicopter being a total wreck, all 11 on ...
The Philippines' military has suffered accidents involving its aircraft in the past and a program to upgrade military assets is underway. In January 2023, two military pilots were killed when ...
The first cruise missile , the first ballistic missile , the first (and to date only) operational rocket-powered combat aircraft Me 163—which attained velocities of up to 1,130 km/h (700 mph) in test flights—and the first vertical take-off a manned point-defence interceptor, the Bachem Ba 349 Natter, were also developed by Germany. However ...