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
The Secrets of Jonathan Sperry Score in the 2009 San Antonio Independent Christian Film Festival. "The Secrets of Jonathan Sperry" was released theatrically on September 18, 2009 in 118 theaters. By November 2009, a total of 240 theaters had been booked, each sponsored by a church or Christian group. Each group paid $2,000 to get the film into a theater, and were given back the investment if the film grossed $4,500 in their individual theatre. In its opening weekend, "The Secrets of Jonathan Sperry" made $258,400 domestically. It had strong box office holds for several weeks, accumulating $1,169,828 to date. Randall Christy of the Gospel