<Li> Electronic engine control (EEC): An EEC is essentially a hydromechanical fuel control but with added electrical components to prevent overheating or overspeeding the engine . If the electrical part of the control should fail, an EEC will revert to a standard hydromechanical fuel control . </Li> <Li> Full - authority digital engine control (FADEC): A digital computer which controls a servo - operated fuel valve . In this case the power lever is only electrically connected to the fuel control . For further study on the theory of hydromechanical fuel controls, go to the oldwoodward.com history site for more facts and figures on jet engine controls . </Li> <Ul> <Li> Honeywell </Li> <Li> Tarco Automation </Li> <Li> Woodward </Li> </Ul>

Describe the controls available when procuring jet fuel