Bell Aircraft Company, the only U.S. firm with experience with vertical takeoffs and landings, designed the LLRV in 1963. The LLRV is seen here test-firing its engines on the tarmac at Dryden Flight Research Center in 1964.
July 20, 2011 5:01 PM PDT
Photo by: NASA
| Caption by: Jennifer Guevin, James Martin
Conversation powered by Livefyre