Beneath it a fuel pump was installed, able to pump 1800 litres per minute through a nozzle fitted in the front of the hull.
en.wikipedia.org In addition to the carburetor, the engine has a speed governor, two magnetos, mechanical fuel pump, generator, and an oil pump.
en.wikipedia.org Crankshaft engines can connect traditional accessories such as alternator, oil pump, fuel pump, cooling system, starter etc.
en.wikipedia.org This functionality is required in some vehicle racing applications, since an electric fuel pump may otherwise continue operating after a collision or rollover.
en.wikipedia.org All the engine accessories, like the fuel pump and electrical alternator, ran directly off the rotor shaft.
en.wikipedia.org