sentences:  Lilienthal was the first to make repeated successful flights (eventually totaling over 2,000) and was the first to use rising air to prolong his flight.Using a Montgomery tandem-wing glider, Daniel Maloney was the first to demonstrate high-altitude controlled flight using a balloon-launched glider launched from 4,000 feet in 1905.The Wright Brothers developed a series of three manned gliders after preliminary tests with a kite as they worked towards achieving powered flight.