Autopilot reducing the pilot's workload. Lawrence Sperry (the son of famous inventor Elmer Sperry) demonstrated it in 1914 at an aviation safety contest held in Paris. At the contest, Sperry demonstrated the credibility of the invention by flying the aircraft with his hands away from the controls and visible to onlookers of the contest. Elmer Sperry Jr., the son of Lawrence Sperry, and Capt Shiras continued work after the war on the same autopilot, and in 1930 they tested a more compact and reliable autopilot which kept a US Army Air Corps aircraft on a true heading and altitude for three
International Tennis Club of Washington International Tennis Club of Washington The International Tennis Club of Washington plays real tennis on Prince's Court at the Regency Sport and Health Club in McLean, Virginia, 6 miles (10 km) from Washington, D.C. Dedicated on October 11, 1997, Prince's is the only new real tennis venue to be constructed in the United States since the Racquet Club of Chicago was built in 1923. (The Chicago court has since been renovated and renewed.) The court, named after financial supporter and club co-founder Frederick H. Prince, features an 18 foot (5.5 m) high main wall made of plate glass giving spectators