With a Geiger 50 HP Wankel engine Rotation Engine. The white tank you see in the photo needed to be replaced, it was NOT ethanol resistant.
The blue 160 Liter tank was meant for a flight around the world. That plan fell through.
The bleu tank should most definately be replaced for a 40/50 liter tank. It also has a double Pieburg fuelpump system. When changing to a smaller tank a word of caution, Fuel must be fed into the engine with 3 Bar. Pieburg pumps do NOT like to suck long distances, so fuel exit MUST be placed close to the fuelpump, preferably exit at the bottom of the new tank.
The Hague, Netherlands 