identification friend or foe
"Identification friend or foe" (IFF) systems are essential for distinguishing between friendly and hostile entities in military and aviation operations.
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Definition
C1Military Operations
(technical, formal)A system that uses electronic signals to identify whether an aircraft, ship, or vehicle is friendly or hostile.
Example
- The fighter jet's identification friend or foe system quickly determined the approaching aircraft was an ally.
- IFF systems are crucial in preventing friendly fire incidents during combat operations.
B2Aviation
(technical, formal)A transponder-based system that communicates with air traffic control to identify an aircraft as friendly and determine its position.
Example
- Commercial planes are equipped with IFF systems to ensure safe identification by air traffic controllers.
- The pilot activated the IFF transponder to send a friendly identification code.