FADED

• Radar contact is lost. (Termination of track plotting is not warranted.)

FAST*

• Target speed is estimated to be 600 knots ground speed/ Mach 1 or greater.

FATHER

• Tactical air navigation (TACAN) station.

FEET WET/ DRY

• Flying over water/ land.

FENCE (IN/ OUT)

• Set cockpit switches as appropriate prior to entering/ exiting the combat area.

FLANK (ING)

• 1. (USAF) Target with a stable aspect of 120 to 150 degrees.
• 2. (Naval) Target with stable aspect of 30 to 60 degrees.

FLASH (System)

• Temporarily turn on prebriefed identification, friend or foe (IFF) mode or system.

FLOAT

• Directive/ informative call to expand the formation laterally within visual limits to maintain a radar contact or prepare for a defensive response.

FOX (Number)

• Simulated/ actual launch of air-to-air weapons.
  • ONE       -semiactive radar - guided missile.
  • TWO      -infrared - guided missile.
  • THREE   -active radar - guided missile.

FOX MIKE

• Very high frequency (VHF)/ frequency modulated (FM) radio.

FRIENDLY

• A positively identified friendly contact.

FURBALL

• A turning fight involving multiple aircraft with known BANDITS and FRIENDLIES mixed.