F1 H2O / F1 Powerboat News ABU DHABI - Monday, September 27, 2010 The curtain rises on the long awaited and eagerly anticipated new support Class of F4 boats that will premiere next weekend at the UIM F1 H2O World Championship's 14th Grand Prix of China in Linyi on the 2nd and 3rd of October on the Yihe River.