5/29/2009 - Arnold Air Force Base, Tenn. -- A team at Arnold Engineering Development Center's (AEDC) National Full-Scale Aerodynamics Complex (NFAC) at Moffett Field, Calif., recently concluded high-power, top priority testing on a full-scale four-bladed UH-60 Blackhawk rotor system in the facility's 40-by-80-foot wind tunnel.
The primary purpose of the testing was to evaluate an individual blade control (IBC) system for its ability to reduce noise, vibration and improve the performance of the rotor system.
"This was the culmination of a collaborative wind tunnel test program between NASA, the U.S. Army, Sikorsky Aircraft and ZF Luftfahrttechnik GmbH (ZFL) to demonstrate the benefits of IBC for a UH-60 rotor," said Tom Norman, a project engineer with NASA Ames. "All major test objectives were met, allowing for the evaluation of IBC effects on power, noise, vibration, loads and flight characteristics. In addition, the ability of the IBC technology to provide in-flight tuning and reconfiguration was demonstrated...
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