fan method (of reconnaissance)

observed fire fan (OF fan)

reconnaissance method

duct-enclosed fan

duct-inclosed fan

fan

fan exit duct

crankshaft fan pulley

unducted fan (engine)

fan drive propeller shaft

fan hub clutch

fan mounting bracket

fan shaft

fan-like action

fan-powered aircraft

fan thrust reverser

prop-fan engine

recirculation fan

axial fan

electric fan

fan marker

fan straightener

radio fan marker beacon

generator armature fan

firing fan

fan out

range deflection fan

tilting ducted fan drone

counter reconnaissance / counter-reconnaissance

accelerated blowback method

collection method

method of operation (MOO)

retarded blowback method