Sikorsky HO5S-1G (1952)
Sikorsky Aircraft Corporation’s two-seat S-52, the first helicopter to have all-metal rotor blades, first flew on 12 February 1947. Sikorsky developed a four-seat model and
Model: HOS
Sikorsky HO4S-2G / 3G; “Horse” (1951)
Late in 1951, the Coast Guard acquired the Sikorsky HO4S-2G helicopter for search and rescue duty. Seven helicopters were obtained on the initial order. Cruising
Sikorsky HO3S-1G (1946)
Four Sikorsky S-51 helicopters, which had been sold to small commercial operators after WWII, were returned to Sikorsky. Sikorsky had originally designed the S-51 with
Sikorsky HO2S-1 (1946)
The Coast used two HO2S-1s to test and develop helicopter dipping Sonar for ASW operations. In January of 1946 LT. Stewart Graham reported to Commander
Sikorsky HOS-1 (R-6) (1945)
Sikorsky designed the HOS-1(R-6) as a follow on to his fabric covered HNS-1 (R-4). While retaining the R-4’s rotor and transmission system, the R-6 had