Sikorsky HH-52 Seaguard

Sikorsky HH-52 Seaguard
Zemlja	Sad
Ulogu	SAR/komunalni helikopter
Pokrenula	22 Maj 1958
Izgradio	175

Čaj Sikorsky HH-52 Seaguard (oznaka kompanije S-KSNUMKS) je bio jedan turbinski motor, amfibijski helikopter rotora sa tri lopatice. Prvobitno razvijen kao komercijalni poduhvat od strane Sikorski Aircraft Corporation of Stratford, Connecticut, korišćen je od strane Obalske straže Sjedinjenih Američkih Država, pre svega za spasavanje vazduh-more. HH-KSNUMKS je zamenjen ne-amfibijskih tipova, kao što su HH-KSNUMKS Dolphin, koji se oslanjaju isključivo na upotrebu vitla iz niskog lebdenja za sprovođenje operacija spašavanja.

Izvor: Sikorsky HH-52 Seaguard on Wikipedia

Sikorsky HH-52 Seaguard Helicopter Walk Around
Photographer	Bill Maloney
Localisation	Unknow
Photos	24

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General Characteristics and Role

The Sikorsky HH-52 Seaguard was a crucial amphibious helicopter used primarily by the United States Coast Guard (USCG) for shipboard and shore-based search and rescue (SAR) operations, as well as law enforcement missions. It was based on the S-62 commercial helicopter and was the world’s first amphibious helicopter in large-scale production, a key feature that defined its service. The HH-52’s ability to land directly on water, thanks to its boat-like hull and outrigger pontoons, gave the USCG a major advantage in maritime rescue operations. Its service spanned over 26 years, making it one of the most reliable and successful assets in the Coast Guard’s history, credited with saving thousands of lives.

Property	Typical Value (HH-52A Seaguard)
Ulogu	Search and Rescue (SAR), Utility, Shipboard Operations
National Origin	Sjedinjene Države
Proizvođača	Sikorsky Aircraft
Service Entry (USCG)	1963
Posada	3 (Pilot, Co-pilot, Crewman/Hoist Operator)
Kapacitet	Up to 10 passengers or 3 stretchers and medical attendant
Rotor Diameter	16.16 m (53 ft 0 in)
Length (Fuselage)	13.57 m (44 ft 6 in)
Visina	4.77 m (15 ft 8 in)
Max Takeoff Weight	3,992 kg (8,800 lb)

Powerplant and Performance

Engine: 1 x General Electric T58-GE-8B turboshaft engine.
Power Output: 932 kW (1,250 shp) (derated for reliability).
Maximum Speed: 175 km/h (109 mph; 94 kn).
Cruise Speed: 155 km/h (96 mph; 84 kn).
Range: 760 km (470 mi; 410 nmi).
Amphibious Capability: Features a fully watertight hull and lateral pontoons for flotation and stability, allowing water landings.

Operational Features and Legacy

Rescue Hoist: Equipped with an electrically powered rescue hoist, essential for lifting people and cargo from the water or confined spaces.
Rotor System: Utilizes the highly reliable rotor and transmission system from the older H-34 (S-58) piston-engine helicopter.
Nickname: Known as the “Hovering Lifeboat” due to its amphibious capability and primary SAR role.
Retirement: The HH-52A was retired from Coast Guard service in 1989, being replaced by the Aerospatiale HH-65 Dolphin.