Balls 8
Retired Boeing NB-52B mothership
Balls 8
Balls 8 is a NASA Boeing NB-52B mothership which was retired in 2004 after almost 50 years of flying service with NASA. The aircraft is famous for dropping the X-15 aerospace research vehicle on 106 of the 199 X-15 program flights.
Read on Wikipedia · Image NASA/Bob Rhine, Public domain
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