Jet Blade Design
The Jet Blade will incorporate a three-ski design that utilizes two skis in the front of the craft and one ski in the rear. These skis are located in spaced relation below an aluminum hull and operate to hydrodynamically lift the Jet Blade to a cruise position by relative water flow upon the undersides of the skis. The rear ski is attached to a horizontal jet pump that is powered by a 650cc water cooled engine. The front suspension implements an Active Tilt steering design that will allow for the agility.
Suspension and Steering Design
Conventional personal watercraft rely on a directional water jet to steer. Jet Blade is unique in that the jet is fixed and steering is accomplished by turning the front skis. In order to achieve maximum turning performance, both skis must remain in contact with the water at all times. This requires the implementation of a tilt suspension system.
Aluminum was selected as the material of choice for the hull of the Jet Blade. While fiberglass provides greater flexibility in the shape of the hull, the manufacturing of the hull will be much easier if aluminum is used instead of fiberglass. The initial design of the hull only included an 1/8" aluminum sheeting shell that would be connected to the engine and pump. A second design was chosen that included an interior frame was needed to help distribute the load of the rider and the Jet Blade.
It was decided that the Jet Blade would implement three-skis in its design, with two skis in the front and one ski in the back. The three ski design was decided upon because it was determined it would increase the maneuverability of the PWC. With two skis located in the front it would then allow for two edges to be in contact with the water while turning at all times giving more control over a one ski design. Having two skis on the Jet Blade will allow for increased stability and allow for easier use for the end user.
Jet Pump and Engine
The propulsion system used by the Wet Bike was chosen for the Jet Blade for several reasons. First, at 50 HP, the motor will provide ample power to propel the craft and was built for use in marine applications. Second, the integrated right angle gearbox is necessary in order to achieve the required motor and pump arrangement. The downward facing intake on the jet pump is ideal because it will allow the proper flow of water while the skis are on plane.