Showing posts with label Solar balloon. Show all posts
Showing posts with label Solar balloon. Show all posts

Solar Balloon the First Touch

A solar balloon is basically the same with a hot air balloon but solar balloon had it lift force using the heat of the sun entirely. How does this solar balloon fly? Because the envelope using black plastic, and the black color easily absorbs heat radiating from the sun and  heats up the air inside the balloon, turning a plain plastic balloon into a high-flying miniature hot air balloon within seconds.
Flying solar balloons is a cheap and easy hobby, like flying a kite. A kite needs wind to lift off the ground, but a solar balloon just needs the sun and it will defy gravity and lift itself into the sky. Further more because it is using black plastic as an envelope, it doesn’t need a lot of money to build it.

Don’t forget the tether! Solar balloons can fly tens of thousands of feet high - above the jet stream. The sun will keep them hot all day so they can fly hundreds of miles in just a few hours.
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Solar balloon

A solar balloon or solar airship, is a hot air balloon which gains buoyancy by using only radiation from the sun; the balloons are generally made from black material, which helps them to heat up in the sunshine. This causes the air present inside the solar balloon to expand and reduce in density compared with the surrounding air. As such, the balloon functions like a hot air balloon. Some solar balloons are large enough for human flight. A vent at the top can be opened to release hot air for descent and deflation.

A completely different concept is a solar airship where the "solar" term describes the propulsion rather than the lifting characteristic. This is a gas airship partially covered with solar cells which power an electric motor and motive propeller.

First manned flight

The first human carrying pure solar balloon flight was made on the 1st May 1973 by Tracy Barnes in his balloon 'Barnes Solar Firefly Tetrahedron'. This balloon was made from a spiral tube of fabric that was formed into a tetrahedron. Dominic Michaelis is recorded as having owned the first pure solar balloon in Europe. This balloon was flown by Julian Nott across the English Channel. Records compiled for the FAI show that on 6th February 1978 Frederick Eshoo also made a solar flight in a balloon called Sunstat.
Solar balloon

Tube Solar Balloon
Standard Solar Balloon
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