The Robinson R66 is a turboshaft-powered helicopter designed and built by the Robinson Helicopter Company. It has five seats, a separate cargo compartment, and is powered by a Rolls-Royce RR300 turboshaft. The R66 is slightly faster and smoother than the Robinson R44 from which it is derived. The R66 received both type and production certificates from the U.S. Federal Aviation Administration (FAA) on October 25, 2010. Deliveries started in November 2010.
The R66 is a single-engined helicopter with a two-bladed main rotor and two-bladed tail rotor, and a skid landing gear. The R66 is constructed from advanced composites, aluminum alloy sheet and chromoly steel. Like the R44, the R66 has both electromechanical instruments as well as the more modern digital glass cockpit.
The R66 is the first Robinson helicopter with a cargo hold; the hold carries up to 300 pounds (140 kg).