Aero Engine Controls produces any of several types of control systems for what kind of engines?
Aero Engine Controls: Aero Engine Controls is the former name of Rolls-Royce Controls and Data Services. Aero Engine Controls:  The company produces engine control software, electronic engine controls (EEC), fuel metering units (FMU), fuel pumps and engine actuators for a large number of common commercial and military aircraft. Fuel control unit: Fuel control unit is the generic term given to any of several types of control systems for gas turbine engines.
gas turbine