Originally Posted by TG
On the Californian 42 LRC configured with four 125 gallon fuel tanks. The tanks are valved at the aft end and accessed under the aft deck hatch.
The typical setup is the tanks are setup in pairs, ie, the port side tanks for the port engine.
This is the most common setup on 38' - 42' aft cabin LRC's with twin full size beds. Those setup with one bed aft, either island or starboard side berth style, usually have two tanks which are both under the bed.
The sedan LRC's which are rare, I've only seen two, have a different tank setup. Usually two tanks, which are mounted port and starboard under the aft deck.