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Inflate this UFO Solar Balloon with air, attach a line and, if the sun is shining, will rise. The thermodynamic balloon is 10 feet long and 2 feet wide. It comes with a 60" tether and instructions.
The new Av-Intel airships encompass an advanced new technology that divides the long cigar-shaped airship into sections or segments that act similar to a huge shock absorber. In simulation studies contracted to the Lockheed Advanced Development Corporation,