Rocketplane
In September 2005, Herrington resigned from NASA to become Vice President/Director of flight Operations for Rocketplane Limited, Inc., where he replaced Mitchell Burnside Clapp. He was also to serve as the pilot of the XP Spaceplane. Herrington also provides part time support for the Center for Space Studies at the University of Colorado at Colorado Springs.
In December 2007, Herrington resigned from Rocketplane, and stated that he plans to continue doing public speaking engagements as well as work with the Chickasaw Nation.
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