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
Gatineau Hot Air Balloon Festival the following years the festival became much larger and was one of the biggest festivals in Canada. Attendance at one point reached over 225,000 people and had over 150 balloons. In 1998, the festival was also hosting the World Hot Air Airship Championship, which was disputed by 16 teams from Europe, China and the United States. On July 14, 2001, Boileau who was the general manager since its beginning was involved in a horrific hot-air balloon accident just east of the Ottawa International Airport on Leitrim Road. The balloon, while trying to land in an open field, struck some hydro