Hot air balloons are not
used so much for
transportation as they are for
enjoyment. Most of the time pilots
don’t even know where they’re going to land. In fact, they have to
have part of the crew follow in a car, so they can pick up the passengers
and equipment. They can't have their crew wait at a planned
Hot air balloons have three main parts:
The envelope is so big because it needs all that room to keep the hot air. One cubic foot of hot air can lift about 7 grams, so if you want to lift 1000 pounds you need 65,000 cubic feet or if you want to lift 373 kilograms of hot air you need 1,841 cubic meters.
controls on a hot air balloon are somewhat simple. There are three
controls on a hot air balloon:
So we know how
to direct the balloon up
and down, but how do we get the balloon to move back and forth? If you want to
steer the balloon, you simply direct it up and down, because in different
parts of the atmosphere the wind is blowing in different directions and
at different speed levels. But pilots still don’t have complete
control over which way they are going to go. Normally the wind leaves
very little options; that’s why (like I said earlier) pilots don’t
normally know where they’re going to land.
Technology has changed over the years and ballooning has become safer and easier, but one thing that hasn’t changed about hot air ballooning is that people enjoy it!
Harris, Tom. “How Hot Air Balloons Work” How Stuff Works. November 18, 2004. <http://travle.howstuffworks.com/hot-air-balloon.htm>.
“How the Balloon Works” eballooning.org. November 18, 2004. <http://eballoning.org/how-it-works.html>.
Animated balloon in upper left corner of page original artwork created by the author of this page.
The photograph of the hot air balloon landing above house from Wikipedia, the Free Encyclopedia. <http://en.wikipedia.org/wiki/Main_Page>. Image has been released into the public domain by its creator, Arpingstone. This applies worldwide.
Permission to use photograph of hot air balloon inflation is granted under the terms of the GNU Free Documentation License from Wikipedia, the Free Encyclopedia. <http://en.wikipedia.org/wiki/Main_Page>.
Copyrighted clip art image of chicken from "Microsoft Office Online" <http://office.microsoft.com/clipart/default.aspx?lc=en-us&cag=1> (October-March, 2004-2005). Clip art available only to licensed users for non-commercial purposes.