Our Jet Boats
A jetboat is a boat propelled by a jet of water ejected from the back of the craft. Unlike a powerboat or motorboat that uses a propeller in the water below or behind the boat, a jetboat draws the water from under the boat into a pump inside the boat, then expels it through a nozzle at the stern.
Jetboats were originally designed by Sir William Hamilton (who developed a waterjet in 1954) for operation in the fast-flowing and shallow rivers of New Zealand, specifically to overcome the problem of propellers striking rocks in such waters.
Discovery Jet operate two boats. Our 22 seater is powered by a monster 502 chevorlet with a 212 unit. Our 10 seater is powered by a 350 chevrolet engine.
Shallow waters and a high degree of manoeuvrability make jet boating an exhilarating experience! Our jet boats offer an enjoyable and safe trip on the Rakaia River.
A = Engine
B = Inlet
C = Impeller
D = Stator Blades
E = Steering Nozzle
F = Reverse Deflector
G = Jet Stream