The S-61: The Next 50 Years

The S-61 helicopter is enjoying new life as a result of the performance improvements that have derived from a new main rotor developed by Carson Helicopters, Inc. The success of these composite rotor blades has led to consideration of additional ways to enhance the efficiency and usefulness of this rotorcraft. This paper discusses other modifications and upgrades currently in progress that will continue to make this aircraft viable and competitive into the future. Two of efforts are highlighted in the paper, an engine upgrade and a new stabilization system/autopilot.