Sikorsky HH-52 Seaguard

HH-52 Seaguard

A U.S. Coast Guard HH-52A Seaguard helicopter
Role	SAR/utility helicopter
Manufacturer	Sikorsky Aircraft
First flight	1959
Introduction	1961
Primary user	United States Coast Guard
Number built	175

The Sikorsky HH-52 Seaguard (company designation S-62) was a single turbine engine, three-blade rotor amphibious helicopter. Originally developed as a commercial venture by the Sikorsky Aircraft Corporation of Stratford, Connecticut, it was used by the United States Coast Guard primarily for air-sea rescue. The HH-52 has been replaced by non-amphibious types such as the HH-65 Dolphin, which rely solely on the use of a winch from a low hover to conduct rescue operations.

Design and development

U.S. Coast Guard HH-52A floating on the sea in 1979

A number of S-62s were bought by the US Navy Bureau of Aeronautics for the US Coast Guard for use as a search and rescue helicopter. Initially designated HU2S-1G Seaguard, it was re-designated as the HH-52A Seaguard in 1962.

The HH-52A used a boat hulled shaped fuselage, smaller but similar to the US Navy's SH-3 (Sikorsky S-61), and was employed aboard the larger Coast Guard cutters and icebreakers. The S-62 used a single 1,250 hp (930 kW) General Electric T58-GE-8B turboshaft engine, a derated version of the T58-GE-10 powerplant used on the larger twin-engined SH-3; and a 1,050 hp T58-GE-6 derated to 670 hp, moving the same main and tail rotor as S-55 Model, in the prototype.

The turbine powered S-62 could carry more weight and fly faster than the H-19 (S-55). The aircraft was first conceived and designed to be amphibious so that flotation gear would not be required for over water flights, and rescues could be made by landing on the water. The fuselage is watertight for landings on water or snow. Two outrigger floats resist pitching and rolling on the water. Although the HH-52A looks very different from the Sikorsky H-19, it used many of the same components.

Variants

N880, S-62 Prototype (cn62001), Paris-Le Bourget (France), June 1959.

A Coast Guard Grumman HU-16E Albatross and a Sikorsky HH-52A Seaguard in March, 1964, probably at CG Air Station Mobile

S-62: Prototype. First flew on the 22nd of May 1958.
S-62A: Amphibious transport helicopter, powered by a General Electric CT58-110-1 turboshaft engine, with accommodation for up to 11 passengers. The S-62A was the first production version.
S-62B: One S-62 was fitted with the main rotor system of the S-58.
S-62C: Company designation of the HH-52A Seaguard.
S-62J: Produced under license in Japan by Mitsubishi.^[1]
HU2S-1G: Original designation of the HH-52A Seaguard. Redesignated HH-52A in 1962.
HH-52A Seaguard: Search and rescue helicopter for the United States Coast Guard. 99 built including one transferred to Iceland.

Operators

Military

Map with military HH-52 operators in blue

Japan

Philippines

Philippine Air Force^[4]^[5]

Civilian

Iceland

Icelandic Coast Guard^[6]

Japan

Japan Coast Guard^[7]

Qatar

Gulf Helicopters^[8]

Thailand

Royal Thai Police ^[9]

United States

Surviving aircraft

HH-52A Seaguard 'USCG1355' at the National Museum of Naval Aviation in Pensacola FL

Cockpit of HH-52A Seaguard 'USCG1355' at the National Museum of Naval Aviation in Pensacola FL

United States

USCG 1355 – HH-52A on static display at the National Naval Aviation Museum at Naval Air Station Pensacola in Pensacola, Florida.^[13]^[14]
USCG 1357 – At Dillingham Airfield in Mokulēia, Hawaii.
USCG 1370 – HH-52A on static display at Freedom Park in Omaha, Nebraska.^[15]
USCG 1375 – HH-52A in storage at Yanks Air Museum in Chino, California.^[16]^[17]
USCG 1378 – HH-52A on static display at the Battleship Memorial Park in Mobile, Alabama.^[18]
USCG 1383 – HH-52A on static display at the American Helicopter Museum & Education Center in Westchester, Pennsylvania.^[19]^[20]
USCG 1384 – On static display at CGAS Elizabeth City in Elizabeth City, North Carolina.
USCG 1389 – At Delgado Community College in New Orleans, Louisiana.
USCG 1394 – HH-52A on display at the Mid-Atlantic Air Museum in Reading, Pennsylvania.^[21]
USCG 1395 – HH-52A on static display at the Classic Rotors Museum in Ramona, California.^[22]
USCG 1398 – HH-52A in storage at CGAS Elizabeth City in Elizabeth City, North Carolina. It was previously located at Black River Technical College in Pocahontas, Arkansas.^[23]
USCG 1397 – At Amarillo College in Amarillo, Texas.
USCG 1415 – HH-52A on static display at the Museum of Flight in Seattle, Washington.^[24]
USCG 1416 – HH-52A at Broward College in Pembroke Pines, Florida.^[25]
USCG 1423 – HH-52A cockpit section only on static display at the National Museum of Naval Aviation at Naval Air Station Pensacola in Pensacola, Florida.^[26]
USCG 1426 – HH-52A on static display at the Steven F. Udvar-Hazy Center of the National Air and Space Museum in Chantilly, Virginia. It was restored by the Coast Guard Aviation Association and went on display on April 14, 2016.^[27]^[28]^[29]^[30]
USCG 1428 – HH-52A on static display at the New England Air Museum in Windsor Locks, Connecticut.^[31]
USCG 1429 – HH-52A on static display at the Intrepid Sea, Air & Space Museum in New York, New York.^[32]^[33]
USCG 1450 – HH-52A on static display at the Pima Air & Space Museum in Tucson, Arizona^[34]
USCG 1455 – HH-52A on static display at the Aviation Hall of Fame and Museum of New Jersey in Teterboro, New Jersey.^[35]
USCG 1459 – HH-52A in storage at the Naval Air Station Glenview Museum in Glenview, Illinois. It was previously on display at the Museum of Science and Industry.^[36]^[37]
USCG 1462 – HH-52A on static display at the Naval Air Station Wildwood Aviation Museum in Erma, New Jersey.^[38]^[39]
USCG 1466 – HH-52A on static display at the Selfridge Military Air Museum at Selfridge Air National Guard Base in Mount Clemens, Michigan.^[40]^[41]

Philippines

62018 – On static display at the Philippine Air Force Museum in Pasay, Manila.^[42]

South Africa

62-062 – S-62A on static display in Strand, Western Cape. It has been painted to resemble SH-3 bureau number 150142.^[43]

Thailand

On static display at the Thai Police Aviation Division operations base in Bangkok, Thailand.

Specifications (HH-52A)

Data from Jane's All The World's Aircraft 1969–70 ^[44]

General characteristics

Crew: 3
Length: 44 ft 6½ in (13.58 m)
Rotor diameter: 53 ft 0 in (16.16 m)
Height: 16 ft 0 in (4.88 m)
Disc area: 2,206 sq ft (205 m²)
Empty weight: 5,083 lb ^[45] (2,306 kg)
Useful load: 3,217 lb ^[45] (1,459 kg)
Max. takeoff weight: 8,300 lb ^[45] (3,764 kg)
Powerplant: 1 × General Electric T58-GE-8 turboshaft, 1250 shp derated to 730 shp (500 kW)

Performance

Maximum speed: 95 knot (175km/h, 109 mph) at sea level
Cruise speed: 85 knot (158 km/h, 98 mph)
Range: 412 nmi (763 km, 474 mi)
Service ceiling: 11,200 ft (3,410 m)
Rate of climb: 1,080 ft/min (5.5 m/s)

References

Notes

↑ http://archive.is/o8ip
1 2 "World Helicopter Market 1968 pg 53". Retrieved 2013-02-25.
↑ "JSDAF S-62". Demand media. Retrieved 26 February 2013.
↑ "World Helicopter Market 1968 pg. 54". flightglobal.com. Retrieved 26 February 2013.
↑ "Phil Air Force S-62". Demand media. Retrieved 26 February 2013.
↑ "Icelandic Coast Guard Service". aeroflight.co.uk. Retrieved 26 February 2013.
↑ Japan Coast Guard: Aircraft Data File | J-HangarSpace: Information on Japanese Aviation
↑ Endres 1979, p. 12.
↑ "World Helicopter Market 1968 pg. 55". flightglobal.com. Retrieved 26 February 2013.
↑ "Sikorsky HH-52A Seaguard" (PDF). uscg.mil. Retrieved 24 February 2013.
↑ "S-62 (HH-52A, S-62A, S-62B, S-62C)". sikorskyarchives.com. Retrieved 26 February 2013.
↑ "SFO-Helicopter Airlines". Demand media. Retrieved 26 February 2013.
↑ "HH-52 SEAGUARD". National Naval Aviation Museum. Naval Aviation Museum Foundation. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1355 USCG, c/n 62-024". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Airframe Dossier – SikorskyS-62 / H-52 / HU2S, s/n 1370 USCG". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Sikorsky S-62A Seaguard (HH-52A)". Yanks Air Museum. Yanks Air Museum. Retrieved 2 June 2017.
↑ "Airframe Dossier – SikorskyS-62 / H-52 / HU2S, s/n 1375 USCG, c/r N9165Q". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Aircraft". USS Alabama Battleship Memorial Park. USS Alabama Battleship Memorial Park. Retrieved 2 June 2017.
↑ "Sikorsky S-62 / HH 52A Sea Guardian". American Helicopter Museum & Education Center. American Helicopter Museum & Education Center. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1383 USCG, c/n 62-064". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "SIKORSKY HH-52A "SEAGUARD"". Mid-Atlantic Air Museum. Mid-Atlantic Air Museum. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1395 USCG". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1398 USCG, c/n 62-083". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Sikorsky HH-52 Seaguard". The Museum of Flight. The Museum of Flight. Retrieved 2 June 2017.
↑ "c/n 62-100". helis.com. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1423 USCG, c/n 62.111". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "Sikorsky HH-52A Seaguard". Smithsonian National Air and Space Museum. Retrieved 2 June 2017.
↑ Connor, Roger (14 March 2016). "Celebrating the Centennial of Coast Guard Aviation with the Seaguard". Smithsonian National Air and Space Museum. Retrieved 2 June 2017.
↑ "Phoenix Project". Coast Guard Aviation Association. Coast Guard Aviation Association. Retrieved 2 June 2017.
↑ Ruane, Michael E. (4 March 2016). "The story of the helicopter that saved 22 sailors from burning ships was forgotten. Until now.". Washington Post. Retrieved 2 June 2017.
↑ "Sikorsky HH-52A (S-62A) 'Seaguard'". New England Air Museum. New England Air Museum. Retrieved 2 June 2017.
↑ "Aircraft COLLECTION". Intrepid Sea, Air & Space Museum Complex. Retrieved 2 June 2017.
↑ "Airframe Dossier - Sikorsky HH-52A Seaguard, s/n 1429 USCG, c/n 62-117". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "SEAGUARD". Pima Air & Space Museum. PimaAir.org. Retrieved 2 June 2017.
↑ Castiglione, Roger A.; Rethage, Fritz (October 2016). "Self Guided Tour of The Aviation Hall of Fame & Museum of New Jersey" (PDF). The Aviation Hall of Fame of New Jersey. Retrieved 2 June 2017.
↑ Kukulka, Alexandra (10 June 2016). "Organizations seek new home for Naval Air Station Glenview Museum". Chicago Tribune. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1459 USCG, c/n 62.138". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "HH-52 Helicopter". Naval Air Station Wildwood Aviation Museum. NASW Aviation Museum. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1462". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "HH-52 SEAGUARD". Selfridge Military Air Museum. Retrieved 2 June 2017.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 1466 USCG, c/n 62145". Aerial Visuals. AerialVisuals.ca.
↑ "Airframe Dossier – Sikorsky HH-52A Seaguard, s/n 62018 PhiAF, c/n M62-018". Aerial Visuals. AerialVisuals.ca. Retrieved 2 June 2017.
↑ "c/n 62-062". helis.com. Retrieved 2 June 2017.
↑ Taylor 1969, pp. 434–434.
1 2 3 Sikorsky Preflight Reference Cards

Bibliography

Endres, Günter G. World Airline Fleets 1979. Hounslow, UK: Airline Publications and Sales Ltd., 1979, ISBN 0-905117-53-0.
Taylor, John W. R.. Jane's All The World's Aircraft 1969–70. London:Jane's Yearbooks, 1969.

External links

Wikimedia Commons has media related to Sikorsky H-52.

Sikorsky aircraft
Fixed-wing aircraft (company designations)	S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-9 S-10 S-11 S-12 S-13 S-14 S-15 S-16 S-17 S-18 S-19 S-20 S-21 S-22 S-23 S-24 S-25 S-26 S-27 S-28 S-29-A S-30 S-31 S-32 S-33 S-34 S-35 S-36 S-37 S-38 S-39 S-40 S-41 S-42 S-43 VS-44 S-45
Fixed-wing aircraft (military designations)	C-6 C-28 JRS JR2S PS RS XBLR-3 XPBS XSS XV-2
Helicopters (company designations)	VS-300 (S-46) S-47 S-48 S-49 S-50 S-51 S-52 S-53 S-54 S-55 S-56 S-57 S-58 S-59 S-60 S-61 S-61L/N S-61R S-62 S-63 S-64 S-65 S-66 S-67 S-68 S-69 S-70 S-71 S-72 S-74 S-75 S-76 S-80 S-92 S-97 S-300 S-333 S-434
Helicopters (military designations)	SH-3 HH-3E/F R-4 H-5 H-6 H-18 H-19 H-34 CH-37 XH-39 HH-52A CH-53 CH-53E CH-53K CH-54 HLH HH-60G HH-60J MH-60R/S SH-60B/F SH-60J/K UH-60 VH-60 RAH-66 H-92 CH-124 CH-148
Experimental aircraft	Cypher Cypher II Firefly X2 XBLR-3 XV-2

United States helicopter designations, Army/Air Force and Tri-Service systems

Numerical sequence used by USAAC/USAAF/USAF 1941–present; US Army 1948–1956 and 1962–present; US Navy 1962–present

Main sequence
(1941–1962)

Prefix R-, 1941–1948	R-1 R-2 R-3 R-4 R-5 R-6 R-7 R-8 R-9 R-10 R-11 R-12 R-13 R-14 R-15 R-16
Prefix H-, 1948–1962	H-5 H-6 H-9 H-10 H-11 H-12 H-13/J H-15 H-16 H-17 H-18 H-19 H-20 H-21 H-22 H-23 H-24 H-25 H-26 H-27 H-28 H-29 H-30 H-31 H-32 H-33 H-34 H-35 H-36¹ H-37 H-38¹ H-39 H-40 H-41 H-42 H-43 H-44¹ H-45¹

Main joint sequence
(1962–present)

1962 redesignations	OH-13/UH-13J UH-19 CH-21 OH-23 UH-25 CH-34 CH-37 HH-43
New designations	CH-46/HH-46/UH-46 CH-47 UH-48 XH-49 QH-50 XH-51 HH-52 CH-53/HH-53/MH-53/CH-53E/CH-53K CH-54 TH-55 AH-56 TH-57 OH-58 XH-59 UH-60/SH-60/HH-60/MH-60 YUH-61 XCH-62 YAH-63 AH-64 HH-65 RAH-66 TH-67 MH-68 H-69¹ ARH-70 VH-71 UH-72 H-73 to H-89¹ MH-90 H-91¹ VH-92

1962 redesignations
reusing old numbers

¹ Not assigned

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