a four-blade main rotor system with a rigid, composite rotor hub and a two-blade tail rotor. The Bell 427's cabin is 13 in (33 cm) longer than the 407, and consists primarily of composite construction. The design removes the roof beam which obstructs the cabin on the 206/206L/407, and has an optional sliding main cabin door. The 427 offers eight-place seating including pilot in a two+three+three arrangement. Alternate layouts include four in the main cabin in a club configuration, or two stretchers and two medical attendants for medical evacuation duties. Operators Entre Rios Police Czech HEMS – Alfa Helicopter Paraguayan Air Force Specifications (Bell 427) See also References External links Bell 427 page on Bell Helicopter's site 1990s United States helicopters 1990s Canadian civil utility aircraft Twin-turbine helicopters Aircraft first flown in 1997 427