Sikorsky HH-52 Seaguard

Sikorsky HH-52 Seaguard
Državi	Zda
Vlogo	SAR/komunalni helikopter
Začela	22. maj 1958
Zgrajena	175

V Sikorsky HH-52 Seaguard (oznaka podjetja S-62) je bil amfibijski helikopter z enim turbinskim motorjem s tremi lopaticami. Prvotno ga je kot komercialno podjetje razvila Sikorsky Aircraft Corporation iz Stratforda v Connecticutu, uporabljala pa ga je obalna straža Združenih držav Amerike predvsem za reševanje v zraku in morju. HH-52 so nadomestili neamfibijski tipi, kot je HH-65 Dolphin, ki se zanašajo izključno na uporabo vitla iz nizkega lebdenja za izvajanje reševalnih operacij.

Vir: Sikorsky HH-52 Seaguard na Wikipediji

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)
Vlogo	Search and Rescue (SAR), Utility, Shipboard Operations
National Origin	Združene države Amerike
proizvajalec	Sikorsky Aircraft
Service Entry (USCG)	1963
Posadke	3 (Pilot, Co-pilot, Crewman/Hoist Operator)
Zmogljivost	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)
Višina	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.

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