Outfitted with a cc engine, a watertight cockpit and six dolphin-like fins, the Innespace Seabreacher redefines personal watercraft. The foot vessel can reach 50 mph on flat water, cruise beneath the surface, and launch 18 feet into the air. It's also got an iPod-compatible sound system and a digital periscope.
Summer may never be the same. The Seabreacher's top rear fin acts like a car spoiler. When the craft is underwater, aiming its water jet toward the tail fin produces drag that pushes the craft's rear downward and the nose upward, launching the vessel out of the water.
A single jet controls propulsion and steering. Drivers aim it with two foot pedals in the cockpit. Pointing the stream left or right initiates a turn; directing it down pops the tail up and aims the craft's nose down for a dive.
The horsepower gas engine--similar to a Jet Ski's--generates speeds of 50 mph on the surface and 25 mph beneath. Air intake at the dorsal fin lets the craft cruise underwater while getting oxygen to the engine. Two manually controlled side fins add maneuverability.
Tilting the fins forward sucks the vessel deeper into the water; tilting them backward helps it rise. One forward and one back forces the craft to roll onto its side underwater or on the surface.