Ed Yost own interests turned toward reviving the lost practice of manned hot-air ballooning. This technology had first been invented in France by in the late 18th century by pioneers led by the Montgolfier brothers, but under the Montgolfier system, the balloon's air was heated by a ground fire prior to the balloon being released. The inherent danger of this type of balloon flight led to the system being abandoned when hydrogen and later helium became available. One of Yost's key engineering insights was that a hot-air balloon could be made to carry its own fuel. The invention of relatively light burners
Philippine International Hot Air Balloon Fiesta Philippine International Hot Air Balloon Fiesta The Philippine International Hot Air Balloon Fiesta is an annual event that occurs between January and February in Clark Freeport Zone, Angeles City, Pampanga. It features multicolored hot air balloons with more than a hundred balloon pilots from around the world. This four-day hot air balloon event is the biggest and longest-running aviation sports event in the Philippines. The festival also features a number of events in skydiving, flag jumps, micro light and rocketry demonstrations, small plane fly-bys and fly-ins, remote-control airplane and helicopter flying exhibitions, freestyle aerobatics, precision maneuvers, light airplane balloon bursting,