This action allows the boat to reach maximum speed in minimum seconds. The combination of trimming in and out makes the tunnel boat the most maneuverable race craft on water. Through the qualifying heats where drivers dice it out for best finish, least time to final race events, the pace is furious. The Regatta Grand Prix begins with the incredible LeMans start along the pit dock. This standing start is used only by tunnel boats.
All boats race at full throttle by the first turn.
A lifting effect results as air flows through the tunnel at high speed accelerating the boat to its optimum running speed and angle. Safety and rescue is provided by Pittsburgh River Rescue.