By eleven o'clock the tanks of the Sky-Bird II had been filled with gasoline and oil, and the radiator of each engine supplied with twelve gallons of water.  In addition to this, its crew had carefully gone over every brace, control, bolt, and nut to make sure that everything was tight, the engines had been run detached from the propeller for a few minutes to warm them up, and every bearing not reached by the lubricating system was well oiled by hand.