(DoD, NATO) The horizontal component of the speed of an aircraft relative to the Earth's surface. Also called GS.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). ground speed. Retrieved September 20, 2026, from http://smartdefine.org/ground_speed/definitions/1961944 |
| Chicago | Military Dictionary (DoD). 2011. "ground speed" http://smartdefine.org/ground_speed/definitions/1961944 (accessed September 20, 2026). |
| Harvard | Military Dictionary (DoD) 2011, ground speed, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ground_speed/definitions/1961944>. |
| MLA | Military Dictionary (DoD). "ground speed" 4 April 2011. Web. 20 September 2026. <http://smartdefine.org/ground_speed/definitions/1961944> |