International flight 1785, when Jean-Pierre Blanchard and John Jeffries crossed the English Channel in a hot air balloon. It took more than a century for the first heavier-than-air object to repeat this process: Louis Blériot crossed the English Channel on July 25, 1909, winning a "Daily Mail" prize of £1,000. Aviation technology developed during World War I, with aviation between the World Wars seeing the development of international commercial flights. There was a combination of aircraft types which included airships and airplanes. The first airline to operate international flights was Chalk's Ocean Airways, established 1917, which operated scheduled seaplane services from Florida
Hot air balloon an open flame near the gas. All modern Roziere balloons now use helium as a lifting gas. Solar balloons are hot air balloons that use just solar energy captured by a dark envelope to heat the air inside. Hot air balloon can be steered to a limited degree by changing the altitude of the flight. Wind in the northern hemisphere tends to turn right due to coriolis effect as the altitude increases. To help ensure the safety of pilot and passengers, a hot air balloon may carry several pieces of safety equipment. To relight the burner if the pilot light