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Sailors and Marines board a CH-46E Sea Knight, assigned to Marine Medium Helicopter Squadron (HMM) 265, after the amphibious assault ship USS Essex (LHD 2) arrived off the coast of Sihanoukville, Kingdom of Cambodia.

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Sailors and Marines board a CH-46E Sea Knight, assigned to Marine Medium Helicopter Squadron (HMM) 265, after the amphibious assault ship USS Essex (LHD 2) arrived off the coast of Sihanoukville, Kingdom of Cambodia.

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GULF OF THAILAND (Nov. 26, 2007) Sailors and Marines board a CH-46E Sea Knight, assigned to Marine Medium Helicopter Squadron (HMM) 265, after the amphibious assault ship USS Essex (LHD 2) arrived off the coast of Sihanoukville, Kingdom of Cambodia. The Sailors and Marines aboard Essex are departing to one of the two medical and dental community action projects scheduled during the visit. Essex is the lead ship of the only permanently forward-deployed U.S. Expeditionary Strike Group and serves as the flagship for Commander, Task Force 76. U.S. Navy photo by Mass Communication Specialist 2nd Class Drae Parker File# 071126-N-1778P-031

Known as the "Phrog", the Sea Knight was used in all U.S. Marine operational environments between its introduction during the Vietnam War. The type's longevity and reputation for reliability led to mantras such as "phrogs phorever" and "never trust a helicopter under 30". During the 1940s and 1950s, American rotorcraft manufacturer Piasecki Helicopter emerged as a pioneering developer of tandem-rotor helicopters; perhaps the most famous of these being the piston-powered H-21 "Flying Banana", an early utility and transport helicopter. During 1955, Piasecki was officially renamed as Vertol Corporation (standing for vertical take-off and landing); it was around this time that work commenced on the development of a new generation of tandem rotor helicopter. During 1956, the new design received the internal company designation of Vertol Model 107, or simply V-107; this rotorcraft differed from its predecessors by harnessing the newly developed turboshaft engine instead of piston-based counterparts. In 1960, American Boeing acquired Vertol and in 1961, it was announced that Boeing Vertol had been selected to manufacture its model 107M for the U.S. Marine Corps. Following the Sea Knight's first flight in August 1962, the military designation was changed to CH-46A.

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Date

26/11/2007 - 26/11/2007
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Location

GULF OF THAILAND
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Source

U.S. NAVY
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Public Domain

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