Sikorsky has begun whirl testing a demonstration rotor system with active flaps as part of the company's "commitment to design, develop, test and ultimately field next-generation technologies that will advance the current state of rotorcraft".
Sikorsky says its has reached full speed of 450rpm and has begun testing "flap integrity and functionality."
"Now we will investigate rotor reconfiguration capabilities to demonstrate the potential to reduce rotor vibration and noise, and increase blade loading, which enables higher manoeuvrability and speed," it says. Testing is expected to continue until the end of the month while windtunnel testing at NASA is planned for next year.
Sikorsky adds: "We are on a path to prove the concept of configuring a helicopter's dynamic system to maximise aircraft performance, reduce noise and lower vibration while enhancing overall mission effectiveness."
Source: Flight International
