Hot Air Balloons

Invented in France in 1783, hot air balloons are thethen the burner is used to heat the air inside while
oldest successful flight machines made bythe users hold the balloon down with ropes. Once
mankind. They range from very basic balloons tothe wind has been judged using smaller balloons
their advanced cousins, the airship orthe pilot can take off, rising or descending into
zeppelin.Ballooning is very different from otherdifferent air currents to change direction.The
forms of flight. The experience is very quiet,balloon has been used throughout history; the
gives an amazing view, and the movement isChinese used small unmanned balloons as signalling
very gentle. The giant balloon itself is called thetools and they were employed as lookout posts
envelope and come in a variety of spectacularduring the American civil war and the French
colours and designs, as well as unusual shapes.revolutionary wars. Despite their appearance as
These days they are made from nylon and thebeing slow, lumbering and fragile, Hot air balloons
base from a fire resistant material. A burner atare able to fly to extremely high altitudes. On
the base, usually gas, provides hot air which risesNovember 26, 2005, Vijaypat Singhania set the
into the envelope and provides lift, gently causingworld altitude record for highest hot air balloon
the balloon to rise into the sky. The buoyancy isflight, reaching 21,290 meters (69,852 feet). He
closely related to the difference between airtook off from downtown Bombay, India and
temperature inside the balloon and outside,landed 240 km (150 miles) south in Panchale. The
meaning that the air does not have to befurthest that a hot air balloon has ever been
tremendously hot, just more than the air aroundflown is 7,671.91 km. In January 15, 1991, the
it. Most nylon balloons us a maximum of 120Virgin Pacific Flyer balloon completed the longest
degrees Celsius.Most flights launch early in theflight in a hot air balloon when Per Lindstrand (born
morning when he air is coolest and the winds arein Sweden, but resident in the UK) and Richard
generally low. The envelope is unpacked and a fanBranson of the UK flew from Japan to Northern
is used to blow normal cold air into the envelopeCanada.
and inflate it just enough to establish the shape,