Skyline SL-222
| Industry | Aerospace |
|---|---|
| Headquarters | Ukraine |
| Products | Helicopters |
The Skyline SL-222 represents a light utility helicopter featuring twin engines and a three-blade rotor system, designed and produced by the Ukrainian firm Skyline Construction Bureau. It completed its maiden flight in 2011 and is positioned to rival other affordable civil helicopters, notably targeting the same market segment as the well-known Robinson R22.
Design and development
The SL-222 employs a pod-and-boom configuration, powered by two rear-mounted 73.5 kilowatts (98.6 hp) Hirth 3071 ES engines—each a water-cooled, fuel-injected, three-cylinder two-stroke unit—that collectively drive a three-blade main rotor. Its tail assembly includes a two-blade rotor and a distinctive T-tail complemented by an elongated ventral fin. The cockpit accommodates two occupants seated side-by-side beneath an aerodynamically contoured canopy. Access is provided through dual doors positioned on either side of the fuselage. The helicopter rests on a fixed skid landing gear system.[1]
From a structural perspective, the airframe is constructed around two longitudinal Duralumin spars combined with a tubular steel framework that supports key components such as the engines, transmission system, fuel tanks, cabin floor, and landing gear. The tailboom and cabin floor are fabricated from aluminium alloy, while carbon fibre sandwich composites are extensively utilized in other sections of the airframe. Additionally, the rotor blades incorporate composite materials.[1]
The SL-222 achieved its initial circular flight on or before 16 February 2011.[1]