Semco Balloons Challenger
Persons: 3
Diameter: 52 ft
Height: 70 ft
Volume: 75,750 cu.ft
Weight: 381 lb
Payload: 931 lb
Burner: 20 Million BTU/hr
Fuel capacity: 22 USG
Cost: (1972): US$ 6450
Cost with aluminium gondola: (1972): US$ 6150
FAI AX-7
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