"Built for speed, the Speedstorm R/C Hydro Boat is ready to race right out of the box! The Speedstorm Hydro Boat is Over 2 feet Long and built to last! The spoiler, rudder and turn fin all work together flawlessly to keep the boat firmly planted on the water. Acceleration from idle is simply outstanding. Its superb fiberglass construction and outstanding engines and radio equipment give you an out-of-box experience on par with most anything you could build for yourself."

How firmly planted to the water do you need to be at up to 15 MPH?