During annual maintenance of its 12,000 horsepower drive motor, the 40-foot fan section of NASA Langley Research Center's 14- by 22-Foot Wind Tunnel is still. When the facility is under operation, the spinning of the nearly 16-foot long fan blades produces wind speeds of 230 miles per hour at the test section. The 14- by 22-foot Wind Tunnel, which is used to study low-speed aerodynamics, is one of over 40 research facilities at Langley, in Hampton, Virginia.
