Definition of "test pilot" []

• A pilot who flies aircraft of new or experimental design to test them. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Scott Crossfield, the Edwards test pilot whom Armstrong came in 1955 to replace, became the first person to fly at Mach 2."
• "On March 17, 1953, a T40 rocket air-launched by a Lewis test pilot achieved the hypersonic speed of Mach 5.18, the first time that the “NACA flew successfully an instrumented vehicle to greater than Mach 5.”"
• "Being a test pilot made Armstrong the worst of the carpoolers."