There were additional fuel tanks between the fuel/ballast tanks and the diesel itself. First there are the Normal Fuel Oil tanks (NFO), 4 of them. Then there is the Fuel Oil Collecting tank (FOC) which acts as a settling tank which ensures that the fuel oil and water are separated. Lastly there is the Clean Fuel Oil tank (CFO). Fuel is pumped from the ballast tanks, through a filter and into the NFO tanks, from there it goes to the FOC tank and finally to the CFO tank before going to the engines.
|