Initially flying with Rockwell Manufacturing (N415A) from 1952, this S-55 was delivered to Pratt & Whitney Canada in 1954 (CF-HNG). Later with Kenting, United and Okanagan / Atlantic Helicopters, it was converted to turbine power. Pictured with Quasar Helicopters from 1975, it was written off in 1986 registered to South-West Helicopters at the time.

Early big business helicopter hovering over The Point, at the confluence of the Allegheny River and the Monongahela River. The Manchester Bridge was blown up in 1970. Before buying North American Aviation in 1967, Rockwell only made industrial valves, gas and water meters, power tools and two-stroke engines. N405A to P&W Canada as CF-HNG in 1954. Photo by: Paul Slantis / Historic Pittsburgh