Bob G. Sparks
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Up (2009 film) - Wikipedia
Russian Adventurer Sets New Round-the-World Balloon Flight Record | LTA-Flight Magazine
The two Explorer balloon missions - an article by Greg Kennedy
Just get out there” David Hempleman-Adams on blazing his own trail | World Air Sports Federation
Inside the Original Space Dive: Joseph Kittinger on 1960 Record Jump
Bob G. Sparks
Bob G. Sparks
Bob G. Sparks
Explorer II | Pioneers of Flight
Balloon airport hi-res stock photography and images - Alamy
In Their Words: Stories by Women on the Ground and In the Air — City of Albuquerque
History of ballooning - Wikipedia
The two Explorer balloon missions - an article by Greg Kennedy
The two Explorer balloon missions - an article by Greg Kennedy
The two Explorer balloon missions - an article by Greg Kennedy
The Ice Balloon: S. A. Andree and the Heroic Age of Arctic Exploration: Wilkinson, Alec: 9780307594808: Amazon.com: Books
Official 2017 Albuquerque International Balloon Fiesta Program by Albuquerque International Balloon Fiesta - Issuu
Pilot in Fatal Air Balloon Crash had 30 Years Experience
