The tanks were in the lower part of the forward fuselage.  With the caps removed, a hose was inserted by Paul, and then John forced the gasoline up by a small but powerful handpump until the gauge told that the required additional twenty gallons were in.  The same pump would work with the oil also, and soon the viscid fluid had been transferred from the storage can on the hangar floor to its proper tank in the airplane.  Thence it would feed itself up into the carbureter of the working engine by a force-pump attached to the engine, as with the gasoline.