The Bell 407 is a four-blade, single-engine, civil utility helicopter; a derivative of the Bell 206L-4 LongRanger. The 407 uses the four-blade, soft-in-plane design rotor with composite hub.
The Bell 407 features the four-blade main rotor developed for the OH-58D (Model 406). The blades and hub use composite construction without life limits, and provide better performance and a more comfortable ride. The 407's fuselage is 8 inches (18 cm) wider, increasing internal cabin space, and includes 35% larger main cabin windows. The more powerful Rolls-Royce/Allison 250-C47 turboshaft allows an increase in Maximum Takeoff Weight and improves performance at hotter temperatures and/or higher altitudes. The Bell 407's airframe is generally similar to the LongRanger, but includes a carbon fiber composite tailboom. The helicopter has standard seating for two crew and four - five cabin seats.