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
Penang Hot Air Balloon Fiesta the mainland. Penang Hot Air Balloon Fiesta The Penang Hot Air Balloon Fiesta is an annual hot air balloon festival held within the city of George Town in Penang, Malaysia. The festival, organised by AKA Balloon Sdn Bhd, a Malaysian private limited firm, takes place every February at the city's Polo Ground. Inaugurated in 2015, the two-day Penang Hot Air Balloon Fiesta typically features 15 hot air balloons, with the participating crew coming from various nations such as Malaysia, the Netherlands, Belgium and the United States. The previous edition of the festival in 2017 attracted as many as 170,000 visitors.