Hot air balloon sea level, and humidity of the air surrounding. On a warm day, a balloon cannot lift as much as on a cool day, because the temperature required for launch will exceed the maximum sustainable for nylon envelope fabric. Also, in the lower atmosphere, the lift provided by a hot air balloon decreases about 3% for each 1,000 meters (1% per 1,000 ft) of altitude gained. Standard hot air balloons are known as Montgolfier balloons and rely solely on the buoyancy of hot air provided by the burner and contained by the envelope. This style of balloon was developed by the
Philippine International Hot Air Balloon Fiesta to help jumpstart the local economy and spirit of the Central Luzon region with the commitment of developing hot air ballooning as an aviation sport in the country and making the Philippines one of the leading sports aviation and travel destinations in the Asia Pacific region. The 1994 event originally organized by the Department of Tourism (DOT), the Hot Air Balloon Club, the Clark Development Corporation and British Airways initially began with 21 balloon pilots from 10 countries and one entry from the Philippines, represented by Capt. Joy Roa, the only registered Filipino balloon pilot at that time. The success