Expression - NATO Radio call for launch of a Semi-Active Radar Guided Missile (Usually the AIM-7 Sparrow series of missiles)
"Got Lock! Fox One!"
by Zelinko August 23, 2005
2 more definitions
Code used by NATO Air Force pilots to indicate the launch of an air-to-air semi-active radar (SARH) guided missile.
I'm in position for a Sparrow, Fox One.
by thefosh August 16, 2009
Air Force Slang for the launching of a Sparrow Air to Air missile
"This is Gold 3, Fox One!"
by Wolfe Kerensky August 07, 2005