What type of engines are used on the RNLAF KDC-10 and KC-10's? Does anyone know what type of engines are used on the Royal Netherlands Air Force's KC-10's/KDC-10's? I did some research and found out that they are GE CF6-50 engines, but what comes after the "50"? Is it a -50C2B, for example? Or a -50A?
The Dutch defence department website has the answer:


  motoren: 3 maal CF6-50C2 turbofan


Which translates to


  engines: 3 times CF6-50C2 turbofan