flt con sur flight control surface
FM (97) frequency modulation; frequency-modulated
FMF Fleet Marine Force
FMFLANT Fleet Marine Force, Atlantic
FMFPAC Fleet Marine Force, Pacific
fmn formation
FMS flight management system
FOA field operating agency
F of F field of fire
FORSCOM US Army Forces Command
fps feet per second
frag fragmentation
frd friend (ly)
freq frequency
FS fin-stabilized
FS fire support
FS force sustainment
FS fuselage station
FSB forward support battalion
FSE fire support element
FSN federal stock number
FSO free-space optics
FSO comm free-space optical communication
FSSG Force Service Support Group
ft foot
Ft fort
ftn fortification
ftr fighter
ftr-bmr fighter-bomber
FU fire unit
fus fuselage
FW fixed-wing
fwd forward
G1 (14) personnel section (officer)
G2 (14) intelligence section (officer)
G3 (14) operations and training section (officer)
G4 (14) logistics section (officer)
G5 (14) civil affairs/military government section (officer)
G6 Chief Information Office (officer)
GA tabun
GAN global area network
GB sarin
GBI Ground Based Interceptor
GBMD Ground-based Midcourse Defense
GBS global broadcast system
GBU guided bomb unit
GCC geographic combatant commander
GCCS Global Command and Control System
GCCS-A Global Command and Control System-Army
GCCS-M Global Command and Control System-Maritime