File:XB-70A taking off with TB-58 chase plane.jpg

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Description	English: The XB-70A #1 is seen taking off on a research flight, escorted by a TB-58 chase plane. The TB-58 (a prototype B-58 modified as a trainer) had a dash speed of Mach 2. This allowed it to stay close to the XB-70 as it conducted its research maneuvers. When the XB-70 was flying at or near Mach 3, the slower TB-58 could often keep up with it by flying lower and cutting inside the turns in the XB-70's flight path when these occurred.
Date	1960s date QS:P,+1960-00-00T00:00:00Z/8
Source	http://www.nasa.gov/centers/armstrong/multimedia/imagegallery/XB-70/index.html (http://www.nasa.gov/sites/default/files/images/359380main_ED97-44244-2_full.jpg)
Author	NASA/North American
Other versions	XB-70A ^1 liftoff with TB-58A chase aircraft.jpg

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