The XR-1 was also used to test the concept of water-jet propulsion.

It has a water-jet propulsion giving high speed and ability to operate in shallow water.

In the water vectored thrust water-jet propulsion units drove it along at about 6 knots.

"You probably wouldn't be starting with water-jet propulsion if all you wanted was straight-line speed up to 25 knots," says Brook.

He then explained how aerodynamic design, water-jet propulsion and a special polycarbonate material worked to make the WallyPower so fleet.

The water-jet propulsion unit is single-stage, axial, auger-type.

The interceptor boats has full aluminium-alloy hull for reduced weight and is powered by twin water-jet propulsion systems to enable quick response.

A primary problem encountered with water-jet propulsion, such as the mini-ARC's, has been the rapid erosion of impellers due to high sediment levels.

The 30-foot rolling boat features an upsized version of the unique water-jet propulsion system and retractable wheels first seen on the Gibbs Aquada.

It is propelled by water-jet propulsion which comprises thrusters for generating motion in different directions to control surge, sway, heave, pitch, and yaw, while preventing the vehicle from rolling.

Shallow water in the Sound of Harris led to the adoption of a water-jet propulsion system, rather than the Voith Schneider units of the earlier Loch Class ferries.

Powered by a 500 hp turbodiesel engine, the 4,500 pound Phibian can travel at highway speeds on land and can hit 25 knots in boat mode through the use of a water-jet propulsion system, similar to personal watercraft.