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
Stowaway in the Sky Stowaway in the Sky Stowaway in the Sky (French: Le Voyage en ballon) is a 1960 French family adventure film, in Dyaliscope and Eastman Color, directed by Albert Lamorisse. Albert Lamorisse used his ten-year-old son Pascal as the main character in the film. The film tells the story of Pascal, a small child who's fascinated by his grandfather's lighter-than-air balloon. The older man claims he's invented the best mode of transportation: a balloon that can be controlled when in the sky. The altitude, direction, and speed of the balloon are all under the direction of the pilot. As the "grand-père"