What are the specifics of the balloon itself?
Fossett will fly a helium and hot-air balloon combination, known as a Rozire. The balloon envelope will be much larger than the one used in his last flight containing 450,000 cubic feet of helium, as opposed to 270,000 cubic feet before, and it contains 100,000 cubic feet of hot air. The balloon envelope is 150 feet tall and 80 feet wide.