Some­thing bor­rowed?

Pilot - - NOTES -

Rus­sia's new­est light he­li­copter looks rather like an old Siko­rsky de­sign, once op­er­ated by the US Ma­rine Corps

At this month’s Helirus­sia Expo in Moscow, Rus­sian new­comer man­u­fac­turer AGAN Air­craft Group plans to in­tro­duce a new light sin­gle-en­gine he­li­copter, the Kasatka 505. Pow­ered by a Ly­coming O-540 pis­ton en­gine, the four seat craft is said to in­cor­po­rate the ‘pro­pel­ling sys­tem’ of the seventy-year-old Siko­rsky S-52, and in­cor­po­rates a new all­metal fuse­lage, skid land­ing gear and mod­ern avion­ics.

The Franklin-en­gined S-52 first flew in two-seat form in 1947, and was de­vel­oped into the three/four-seat S-52-2. It was the first Us-built he­li­copter to have all-me­tal ro­tor blades. The S-52 set speed and al­ti­tude records, and in May 1949 be­came the first he­li­copter to per­form loops, when test pi­lot ‘Tommy’ Thomp­son flew six con­sec­u­tive loops solo, then four more with a pas­sen­ger.

In mil­i­tary HO5S guise it served ex­ten­sively with the US Ma­rine Corps in mede­vac role dur­ing the Korean War, and do­mes­ti­cally with the US Coast Guard. As the Hummingbird 260L it has been of­fered as a home­built kit by Ver­ti­cal Avi­a­tion Tech­nolo­gies.

ABOVE: AGAN'S Kasatka 550 com­bines S-52 ro­tor sys­tem tech­nol­ogy with a new fuse­lage de­sign and mod­ern avion­ics

The S-52 in mil­i­tary HO5S guise

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