F1 H2O / F1 Powerboat News ABU DHABI, United Arab Emirates Friday, September 3, 2010 German UIM F1 H2O driver Fabian Kalsow continues to attract tens of thousands of race followers throughout his native country this summer as he put on demonstration for the fifth time this summer most recently for an ADAC event in Berlin-Grunau in his promotional two-seat F1 boat.