The Bell 222 is the first twin-engine light civilian helicopter developed by the American Marsh Bell Helicopter Company. Its prototype made its first test flight on August 13, 1976. It was approved by the FAA to enter mass production on August 16, and was first delivered for use on January 16, 1980. The rotor system of the Bell 222 helicopter uses two rotor blades. The propeller hub is a titanium alloy structure. The rotor blades cannot be folded. The tail rotor is a two-piece stainless steel structure blade. The fuselage of the Bell 222 is a light alloy semi-monocoque structure, and key parts adopt a damage safety design. The landing gear is a hydraulic retractable tricycle landing gear, and the power unit (Type B) is 2 Dashin Lycoming Company The LTS101-750C-1 turboshaft engine has a single take-off power of 510 kW and a maximum continuous power of 439 kW. The Bell 222s cabin can generally accommodate one pilot and seven passengers, and can carry up to nine passengers. The main types of Bell 222 are: Bell 222A basic type; Bell 222B improved type; Bell 222 executive type, equipped with a full set of single-pilot and dual-pilot instrument flight equipment and a full set of automatic flight control systems; Bell 222UT universal type, starting from The landing gear is a tubular skid equipped with removable wheels for ground control. Emergency flotation systems, auxiliary fuel tanks and avionics equipment can also be optionally installed.
