My Attempt at a hydroplane. Yaw runs the rudders for control at low speeds. At high speeds the rudders will flip the boat, so hit group 2 to drop them. Roll runs the upper rudders and the "wings" behind the bow horns (i dont really remember what they are called). Anyways, use roll at high speeds for steering. Pitch runs the spoiler. Pull up some for a speed boost, but be careful not to take-off as this thing isn't stable once airborn....at all... Pitch down for some stability on the water. If you flip over, the engine will still run, so alternate rolling a few times with engine around 75%-100% to flip back upright. Group 1 activates the brakes on the underside. I advise against using them above ~250 mph or so as they tend to flip the boat head over heels. Have fun.