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 Mothers of Invention "Bongo Fury" in 1975, which featured live recordings from a tour the same year that had reunited him with Captain Beefheart for a brief period. They later became estranged for a period of years, but were in contact at the end of Zappa's life. "Bongo Fury" was the last new album to be credited to the Mothers. In 1993, Zappa released "Ahead of Their Time", an album of previously recorded material by the original Mothers of Invention lineup. The Mothers of Invention The Mothers of Invention were an American rock band from California. Formed in 1964, their work is marked