fuel control unit (FCU)

fuel flow control unit

Proton Exchange Membrane Fuel Cell (PEM fuel cell, PEMFC)

fuel servicing truck / unit

battery coolant unit / battery-coolant unit (BCU)

gear reduction unit / gear-reduction unit

position and navigation unit / position navigation unit (PNU)

pinch (a unit) out of a large unit

fuel quality control equipment

fuel tank selector control

fuel control system

control and display unit (CDU)

electronic control unit (ECU)

fighter control and radar reporting unit

guidance control unit

launch control unit

motor control unit

operator control unit (OCU)

radar weapon control interface unit (RWCIU)

weapon control interface unit

battery control unit (BCU)

bombardment control unit (BCU)

launch coolant system control unit

acceleration control unit

pressure control unit

warning system control unit

windshield heat control unit

control-display unit

control unit

elevation power control unit

remote launch control unit

gun control equipment / gun-control equipment (GCE)

individual control (of fire) / individual fire control