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The XH-44 became operational in 1944. [2] In collaboration with Henry J. Kaiser, it became United Helicopters in 1945. In the postwar years, United Helicopter produced a number of innovative helicopter designs for military and civilian purposes, including coaxial-rotor and tailless designs, as well as more conventional models.
The XH-44 tipped over on its first tethered test flight with Hiller at the controls, resulting in minor damage. On July 4, 1944, the XH-44 made its first untethered flight at the University of California's football stadium at Berkeley. [2] The helicopter made an appearance during a public demonstration at San Francisco on August 30, 1944. [2] [3]
USS Ashland (LSD-1) USS Casa Grande (LSD-13) USS Thomaston (LSD-28) USS Anchorage (LSD-36) USS Whidbey Island (LSD-41) USS Harper's Ferry (LSD-49) Further information: Dock landing ship The LSD came as a result of a British requirement during World War II for a vessel that could carry large landing craft across the seas at speed.
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Air medical transport specialist Air Methods announced yesterday it had received a contract worth $44.8 million from Sikorsky Aircraft to help modernize the U.S. Army's air ambulance fleet.
USS Inchon (MCS-12) with four MH-53E minesweeping helicopters on deck, 2001 This is a list of mine warfare vessels of the United States Navy.. Ship status is indicated as either currently active [A] (including ready reserve), inactive [I], or precommissioning [P].
From 18 February 1968 to 24 September 1973, these detachments were continuously (2045 days) stationed in the Gulf of Tonkin. Formed from HS-6's six helicopters aboard USS Kearsarge. Normally 5-6 helicopters and 35-55 men, with all repair equipment, tools, gear, taking four to five flights each. Det 110/111 completed 142 cross decks.
After some fine tuning of the design, an enhanced version the Mark 44 Mod 1 entered United States service in 1956. However shortly after the torpedo entered service it became apparent that newer Soviet submarines were both faster and deeper diving, and could potentially both outrun and out-dive the Mk.44 which was designed to attack targets ...