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6 photos from Wikimedia Commons · credits & licences
- 1. HH-52A Seaguard with rescue basket 1960s: USCG· Public domain
- 2. 20180328 HH-52 Seaguard Udvar-Hazy: Balon Greyjoy· CC0
- 3. HH-52A Seaguard with rescue basket (cropped): USCG· Public domain
- 4. HH-52A from USCGC Northwind (WAGB-282) 1986: Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994· Public domain
- 5. HH-52As from CGAS Barbers Point in flight 1987: OS2 John Bouvia, USN· Public domain
- 6. Hh-52a krj: Kristian Jones· Public domain
what is it?
The Sikorsky HH-52 Seaguard (company designation S-62) is an early amphibious helicopter designed and produced by American helicopter manufacturer Sikorsky Aircraft. It was the first of the company's amphibious rotorcraft to fly and the United States Coast Guard's first turbine-powered helicopter and first amphibious helicopter. The S-62 was originally developed as a commercial venture during the late 1950s.
How to recognise it: 1 turboshaft engine · 16.2 m main rotor
base stats
Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).
fun facts
- First flew 67 years ago, in 1959.
- Rotor of 16.2 m: about 4 cars parked nose to tail.
turboshaft: A turbine that turns a shaft, usually a helicopter rotor.
spec sheet
- first flight
- 1959
- introduced
- 1961
- status
- retired
- number built
- 170
- role
- sar/utility helicopter
- origin
- 🇺🇸 United States
- makers
- Mitsubishi, Sikorsky Aircraft Corporation
- engines
- 1× General Electric T58-GE-8
- crew
- 3
- length
- 13.6 m
- rotor diameter
- 16.2 m
- height
- 4.9 m
- max take-off weight
- 3,765 kg
- top speed
- 176 km/h
- cruise speed
- 157 km/h
- range
- 763 km
- ceiling
- 3,414 m
Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.
Sources: Wikidata Q2164371, Wikipedia: Sikorsky HH-52 Seaguard (CC BY-SA 4.0).Updated 2026-10-24.