A hot air balloon requires a great deal of fuel to keep it aloft, so that you can't fly it even for one day. A gas balloon, which usually uses helium, has the problem that the helium cools at night when the sun is not on it, and you have to throw ballast overboard to keep it from going to the surface.

A hot air balloon requires a great deal of fuel to keep it aloft, so that you can't fly it even for one day. A gas balloon, which usually uses helium, has the problem that the helium cools at night when the sun is not on it, and you have to throw ballast overboard to keep it from going to the surface.

The good thing about flying solo is it's never boring.

People often assume I assume I am a thrill seeker, but I am not. I do not enjoy roller coasters, and you won't find me bungee-jumping. ... It is a disadvantage that my pursuits are inherently dangerous. A large part of my effort is to reduce risk.

I was never comfortable with the risk of climbing in the Himalayas, or the amount of time in idleness that is involved in the Everest expedition.

Boy Scouts does very well in making Scouts aware of character and integrity and … virtues and incorporate [them] in their lives so that they carry themselves as [those] kind of [people] for the rest of their [lives].

I pick projects according to how fascinating they are to me, and it has resulted in a broad reach. My records are actually in five different sports: balloons, airplanes, airships, gliders, and sailboats.