The Sea Guard or Sea Guardian Helicopter was created to fill a need for a smaller amphibious helicopter.

The design began in 1957 for the S-62A (later designated HH-52A), using the rotor and transmission from the S-55 and a single turbo shaft and fuselage similar to the H-3 (S-61) Sea King. The first prototype flew in May of 1958.

The HH-52A was very similar in appearance to the H-3 Sea King, except for the new cabin windows and three blade rotor.

The Sea Guard utilized a starboard side rescue platform that folded down for on-the-water rescues. The Sea Guard was fully amphibious with the wheels retracting into the pontoons.

The US NAVY, acting for the US Coast Guard, procured a total of 99 HH-52A’s accepted under contract # TCG42044.

Other principal versions were the S-62C for export and S-62J, built under license in Japan.

All production ended in 1970.

DISPLAY STATUS COUNTRY OF ORIGIN CURRENT LOCATION
Own United States Boneyard
PURPOSE & TYPE MATERIALS ERA & DATE RANGE
 Helicopter, Search & Rescue Steel Early Jets
1945 – 1975
PRODUCTION &
ACQUISITION
SPECIFICATIONS SERVICE HISTORY
MFG: Sikorsky
First Produced: 1958
Number Built: 99
Armament: None

Acquired by Yanks in 2004.

Rotor Diameter: 53’
Length: 44’6”
Height: 16’
Empty Weight: 4,903 lbs
Gross Weight: 8,100 lbs
Powerplant: (1) GE T58-8 
Thrust:
Cruise Speed: 98 mph
Maximum Speed: 109 mph
Range: 474 miles
Delivered: October 3, 1963

1965 – CGAS Port Angeles, WA
1966-68 – CGAS Miami, Fl
1969-73 – CGAS Mobile, AL
1974-77 – CGAS Los Angeles, CA
1978-80 – CGAS Cape May, NJ
1981 – Overhaul ARSC, NC
1983-89 – CGAS Savanna, GA
All HH-52As retired in 1989