File:NH-3A NAN8-65.jpg

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NH-3A_NAN8-65.jpg ‎(529 × 461 pixels, file size: 84 KB, MIME type: image/jpeg)

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Description In 1965 one Sikorsky SH-3A Sea King helicopter (U.S. Navy BuNo 148033, new Sikorsky designation S-61F) was converted for high speed research, with a modified fuselage, twin tubojets, stub wings and a 6-bladed rotor. It was tested by the US Navy and the US Army for total of 88 hours of tests that explored performance, handling qualities, stresses, vibrations and control loads for eight different configurations. The primary objective of the program, to extend tests of the compound configuration to a maximum safe speed of not less than 200 knots (370 km/h), was achieved. Level flight and dive speeds of 211 (391 km/h) and 230 knots (426 km/h), respectively, were reached.
Date
Source U.S. Navy Naval Aviation News August 1965 [1]
Author USN

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Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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current12:59, 2 April 2008Thumbnail for version as of 12:59, 2 April 2008529 × 461 (84 KB)Cobatfor (talk | contribs){{Information |Description=In 1965 one Sikorsky SH-3A ''Sea King'' helicopter (U.S. Navy BuNo 148033, new Sikorsky designation S-61F) was converted for high speed research, with a modified fuselage, twin tubojets, stub wings and a 6-bladed rotor. It was t

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