A full-scale replica of the Wright brothers’ 1903 flyer in NASA’s National Full-Scale Wind Tunnel Aerodynamic Complex at Ames Research Center in California. Its wind comes from six 15-blade fans, each one of which is 40-feet in diameter and powered by a 22,500 HP motor. Two weeks of testing in March 1999 concluded that the 1903 flying machine had “very severe pitch instability.” What would the Wright brothers have thought of this wind tunnel? NASA Ames Research Center