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 of the City of Gatineau since October 2013 Several well-known artists performed during the Festival over the course of its history since 1988. Among those included: http://www.lapresse.ca/le-droit/actualites/ville-de-gatineau/201308/27/01-4683692-jean-boileau-a-la-tete-des-communications-de-gatineau.php Gatineau Hot Air Balloon Festival The Gatineau Hot Air Balloon Festival is a yearly festival, held in Gatineau, Quebec, Canada, and organized by a not-for-profit organization, during which hot air balloons of every shape and colour are flown and where 300 shows and performances adding up to over 60 hours’ worth of programming are taking place. More than 200,000 visitors and 1,000 RVs usually participate. It is held over four days in late-August