NFAC tests next-generation military helicopter

ARNOLD AIR FORCE BASE, Tenn. — The U.S. Army is looking to improve its aviation technology and recently called upon the Arnold Engineering Development Complex – National Full-Scale Aerodynamics Complex at Moffett Field in Mountain View, California, to advance this effort.

Engineers from Sikorsky Aircraft Corporation and The Boeing Company, in partnership with the U.S. Army Combat Capabilities Development Command Aviation & Missile Center Army Aviation Development Directorate, recently conducted a series of tests at NFAC to support the development of the SB>1 DEFIANT?, a military helicopter being developed for the Army?s Joint Multi-Role Technology Demonstrator (JMR TD) program.

The goal of this wind tunnel test was to validate the aerodynamic performance and flight mechanics of Sikorsky?s X2 Technology? aircraft. These configurations, which are being utilized on the SB>1 DEFIANT?, include a lift-offset coaxial rotor system, composite fuselage and rear-mounted pusher propulsor that provides increased speed.