планетарні передачі переднього ходу
epicyclic gear drive
epicyclic gearbox
epicyclic steering unit
epicyclic train of gears
battalion trains
brigade trains
brigade trains area
combat trains
company trains
division trains
trains
trains assets
unit trains
quartermaster trains
command post trains
forward observer (FO), forward observation officer; (artillery) observer / spotter
forward gear
forward gear ratio
forward retracting landing gear
camshaft gear (timing gear)
gear reduction unit / gear-reduction unit
forward
forward air control
forward air controller (FAC)
forward area
forward area signal center
forward area weapon (FAW)
forward arming and refueling point (FARP)
forward base
forward combat elements
forward communications company
forward defense area