Sikorsky H-34 (S-58)

Sikorsky H-34 (S-58)
Страна	Сащ
Роля	Военен хеликоптер
Първи полет	8 March 1954
Построен	2108

Фото галерия на Sikorsky H-34 (S-58), The Sikorsky H-34 (company designation S-58) is a piston-engined military helicopter originally designed by American aircraft manufacturer Sikorsky as an anti-submarine warfare (ASW) aircraft for the United States Navy. It has seen extended use when adapted to turbine power by the British licensee as the Westland Wessex and Sikorsky as the later S-58T. H-34s served, mostly as medium transports, on every continent with the armed forces of twenty-five countries. It saw combat in Algeria, the Dominican Republic, Nicaragua, and throughout Southeast Asia; other uses included saving flood victims, recovering astronauts, fighting fires, and carrying presidents. It was one of the last piston-powered helicopter designs before its replacement by turbine-powered types such as the UH-1 Huey and CH-46 Sea Knight. A total of 2,108 H-34s were manufactured between 1953 and 1970

Източник: Sikorsky H-34 (S-58) on Wiki

Sikorsky H-34 (S-58)
Фотографи	Eugeny Dedigurov, Andrei Zinchuk
Локализация	Не знам
Снимки	49

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Sikorski UH-34D Seahorse Walk Around
Фотограф	Владимир Якубов
Локализация	Музей на стършелите на USS
Снимки	51

Sikorsky UH-34D Seahorse 01

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Sikorsky S-58 Walk Around
Фотограф	Unknow
Локализация	Музей Милитар Лухтваарт, Соустерберг
Снимки	61

Sikorsky S-58

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The “Hump-Backed” Legend

1. Сикорски Н-34 (company designation S-58) was one of the most successful and recognizable helicopters of the mid-20th century. Originally designed for the U.S. Navy as an anti-submarine warfare (ASW) platform, its incredible ruggedness and lifting capacity quickly made it a favorite for the U.S. Marines and Army. Known as the Seabat, Seahorseили Choctaw depending on the branch, it served as a vital bridge between the early experimental helicopters of the Korean War and the turbine-powered “Huey” era. It famously retrieved Mercury astronauts from the sea and pioneered air assault tactics that changed modern warfare forever.

Attribute	Technical Specification (UH-34D)
Роля	Military Utility / Transport / ASW
Екипажа	2 Pilots + 1-2 Crew Chiefs/Gunners
First Flight	March 8, 1954
Силова установка	1 × Wright R-1820-84 Cyclone radial engine
Horsepower	1,525 hp (1,137 kW)
Maximum Speed	122 mph (196 km/h)
Полезен товар	12–16 troops or 8 stretchers (2,300 kg / 5,000 lbs)
Main Rotor	4 blades; 56 ft (17.07 m) diameter

Design Engineering: The Nose-Engine Layout

The Angled Drive Shaft: To keep the main cabin clear for troops and cargo, Sikorsky placed the massive radial engine in the nose, tilted at a 45-degree angle. The drive shaft ran upward between the two pilots’ seats to the main rotor gearbox above the cabin. [Image diagram of the H-34 drive train showing the nose engine and angled shaft]
Clamshell Doors: Maintenance was simplified by two large “clamshell” doors at the very front. Mechanics could stand on the ground and have full access to the engine without needing specialized ladders or scaffolding.
High-Visibility Cockpit: Because the engine occupied the nose, the pilots sat very high up. This gave them an unparalleled view for landing in tight zones, though it also made them prominent targets for ground fire in combat.
Folding Tail and Blades: Designed for carrier use, the entire tail section (pylon) could be folded forward against the fuselage, and the main rotor blades could be stowed, drastically reducing its footprint on a ship’s hangar deck.

Combat and Global Service

The “Pirate” in Algeria: The French Air Force used the H-34 extensively during the Algerian War. They were among the first to arm them with 20mm cannons and machine guns, creating the “Pirate” gunship and developing the “Air Mobile” tactics later used in Vietnam.
The “Stinger” Gunships: In the early years of the Vietnam War, U.S. Marines fitted H-34s with the “TK-1” kit (M60 machine guns and 2.75-inch rockets). Known as “Stingers,” these were the predecessors to dedicated attack helicopters like the Cobra.
Astronaut Recovery: The H-34 was the primary recovery helicopter for NASA’s Project Mercury. It famously attempted to save Gus Grissom’s Liberty Bell 7 capsule before it sank, and successfully retrieved Alan Shepard and John Glenn.
The Turbine Evolution: The airframe was so good that the British licensed it as the Уестланд Уесекс, replacing the piston engine with a turbine. This gave the aircraft a new “nose job” and decades of additional service life with the Royal Navy and RAF.