Here are the most frequently asked questions that we receive about hot air balloons:
An altimeter to indicate altitude, a variometer showing its rate of climb or decent, a compass to show directions, and a temperature gage to show how hot the fabric is at the top of the balloon. Each propane tank has a fuel gauge, and the burner has a fuel pressure gauge.
The colorful envelope is usually made of nylon or polyester, the same type of cloth that parachutes are made of. It is very tightly woven and is coated with a material that makes it very air tight. The nylon is only used to keep the hot air in the balloon. The basket load is transferred by steel or Kevlar cables to a series of vertical load tapes which carry the load. Balloons range in size from about 54,000 cubic feet for a one- or two-person balloon to over 250,000 cubic feet for a balloon capable of carrying a pilot plus eight or ten passengers.
At high altitude, it is colder than at ground level, generally 3.5 degrees colder for each 1,000 feet of altitude.