In a boat hull the jet unit is mounted inboard in the aft section. Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. The international journal of electric boats. Reverse is achieved by lowering an astern deflector (E) into the jetstream after it leaves the nozzle. One of the world’s leaders and pioneers in waterjet propulsion – Australia’s Doen WaterJets – has developed an electric/hybrid ready waterjet  to meet the increasing global demand it is seeing for clean marine mobility. It can also combine or disjoin the diesel and electric power at the waterjet for different modes of operations: Diesel Only, Electric Only, Diesel + Electric and Regeneration, as seen in the diagram above. HamiltonJet waterjets are designed to be optimized for vessel speeds from 25-50 knots, dependent on application’s engineering variables including hull resistance and type, engine power rating and rpm, impeller rating, etc. No central deadband provides higher course-keeping efficiency and higher overall boat speeds. This high pressure flow is discharged at the nozzle (D) as a high velocity jet stream. Pump design offers up to 25% more thrust than other waterjets between 0 and 20 knots. The diagram below shows how the waterjet can be used with a pure electric motor. Pointing the jet stream one way forces the stern of the boat in the opposite direction which puts the vessel into a turn. The new electric/hybrid ready model is designed to work with some of their Ultima Series smaller units and can accept the connection of a motor rated up to 150kW (continuous), about 200 horsepower. HamiltonJet's experience is supported by accurate performance prediction software to ensure waterjets are an appropriate propulsion option for your vessel, and to recommend the most appropriate waterjet size and set up for every different application. The eco-friendly jet engine is based on an emission free motor for SUP and other water sports gear and like an e-bike for the water. USE CASES. 324 electric water jet propulsion products are offered for sale by suppliers on, of which pumps accounts for 9%, electric scooters accounts for 1%, and high pressure cleaner accounts for 1%. Because a waterjet is a propulsive mechanism rather than the thing that actually provides the power, the trick with any jet is matching it with the motor that does provide the power. From the Captain’s point of view, the propulsion and ships control at the wheelhouse remains unchanged; regardless of the specific mode of operation. WaveJet is power over water. Copyright © 2019 HamiltonJet      All rights reserved    Website by hairyLemon, Precise steering control at all boat speeds. This allows Doen to change input/output ratio for the best match for the electric motor’s power characteristics as well as the diesel motor’s specs in a hybrid configuration. New Niagara Falls electric ferries have set sail! Sideways movement possible with multiple jet installations. In both diagrams the Doen PTI interface is shown in red. Growing both in capacity and size of jets, the company expanded to supply dive boats in Japan, have their Doen DJ110 model specified by the US Navy for its 11m RIBs, work with MerCruiser to develop the MerCruiser Jet and now have a full range of waterjets used all over the world, the most powerful units driving boats as big as 90m / 300ft in length. The jet is located at the back of the boat. Doen works closely with boat and engine manufacturers to put together the ideal motor/jet package for each vessel. The addition of WaveJet Technology to the Kayak Market will provide customers with an advantage that traditional electric outboard motors simply can’t compete with! It works in relation to Newton’s Third Law of Motion – “every action has an equal and opposite reaction”. Events; Blog; GALLERY. The driveshaft attaches at the coupling (F) to turn the impeller. HamiltonJet’s global network of Distributors can be found in over 50 locations, support by Regional Offices in the US and Europe and the factory in New Zealand. These advantages include: HamiltonJet waterjets have fewer moving parts and most major components inboard, minimizing the chance accidental damage and increasing the life of components. Steering is achieved by changing the direction of the stream of water as it leaves the jet unit. It receives pumped water through an intake at the bottom of the boat. HamiltonJet's unique JT steering nozzle minimises thrust loss when steering. Waterjet propulsion has many advantages over other forms of marine propulsion, such as stern drives, outboard motors, shafted propellers and surface drives. Started in 1971 by avid ‘boatie’ and mechanical engineer Fran Udvary, Doen was one of the first companies to focus exclusively on jets for recreational boats and quickly became known in the small boat and ski boat world. This is similar to the switchable hybrid motors and systems used in the City of London’s new pilotboats, but with a waterjet providing the propulsion instead of a propeller. Diving; Stand up paddling; BUY. Manoeuvrability at low speeds and acceleration to high speeds are superior. Put simply, the discharge of a high velocity jet stream generates a reaction force in the opposite direction, which is transferred through the body of the jet unit to the craft’s hull, propelling it forward (see diagram below). Support Area; User manual; EVENTS & BLOG. High efficiency astern thrust with “power-braking” ability at speed, Propulsive coefficients as good or higher than the best propeller systems achievable at medium to high planing speeds, Flexibility when using multiple waterjets may allow operators to continue to operate efficiently on fewer drives, Absence of underwater appendages reduces hull resistance, Shallow draught – the waterjet intake is flush with hull bottom to allow access to shallow water areas and beach landings with no risk of damage to the drive, No protruding propulsion gear eliminates impact damage or snags, Minimum downtime and simple maintenance routines, No hull vibration, no torque effect and no high speed cavitation gives maximum comfort levels on board, Jet unit impeller is finely matched to engine power, Power absorption is the same regardless of boat speed, No possibility of engine overload under any conditions, No heavy and expensive gearbox required for many installations. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting of an electric motor or engine turning a propeller, or less frequently, in pump-jets, an impeller. “Zero Speed” steering effect provides 360° thrusting ability for docking and holding stationary. 3)-water jet propulsion units, -parts and -accessories for individually built model boats with scales 1:8 to 1:50 KMB JET28 (Rev. Without getting overly technical, the major advance is their integrated Power-Take-In (P.T.I.) A clean, quiet, battery-powered miniature jet drive, it can be plugged into any WaveJet-ready personal watercraft, including kayaks, stand up paddle boards (SUPs) & surfboards. High torque electric motor manufacturer Linear Labs has added $6M in new investment to a recent $68.9 million partnership and, Future installations of the electric boat chargers introduced last summer in the Vita superPower network will feature a striking new, The first UK electric ferry set off October 13 to start a series of trials in preparation to carry paying, Chameleon e-boat has multiple configurations, Revolutionary high torque electric motor gets $74M support, New French electric rim motor now taking pre-orders, ePropulsion electric outboard, EFOY methanol fuel cell hook up, Historic Zebu world’s 1st tall ship with electric motor, ePropulsion Navy 3.0 Short Shaft (TIller), Vita electric boat chargers will be recycled aluminum, New 48′ solar electric catamaran from Soel Yachts, Classic look hydrofoiling electric boat debuts in Moscow, Electrons #1 – sparks and arcs from here and there, 1st UK electric ferry makes a splash in Plymouth. It is part of a simplified system that means diesel and/or electric power can be converted to the waterjet as required without elaborate and expensive transmissions. The Alamarin-Jet water jet propulsion unit is a high-quality propulsion unit for boats. Learn more. New electric/hybrid waterjet propulsion system July 13, 2019 Jeff Butler 11150 Views 0 Comments Australia , Doen One of the world’s leaders and pioneers in waterjet propulsion – Australia’s Doen WaterJets – has developed an electric/hybrid ready waterjet to meet the increasing global demand it is seeing for clean marine mobility. WaveJet is power over water. The intake duct leads the water onto the impeller and the impeller raises the pressure of the water. SCUBAJET is the water jet system for all water sports fans and can be used as dive scooter or electric powered motor for any SUP or water sports gear. KMB JET28 (Rev. 3) waterjet propulsion | KMB - Kehrer Modellbau To be able to use KMB - Kehrer Modellbau in full range, we recommend activating Javascript in your browser. Simple driveline from engine to jet coupling, Complete factory tested package, ready to bolt in, Strong, lightweight, cast aluminum housing, Wide choice of stainless steel impellers for optimum engine matching, strength and cavitation resistance, Standard left-hand rotation (counter-clockwise looking at the engine flywheel), Integrated intake and mounting base for ease of installation, Power operated, split-duct reverse bucket for maximum operational control (except HJ212 model), Standard clean-out port with optional extension collar, Wide range of hydraulic and electronic control systems including blue ARROW and MECS electronic controls, Provision for an internal rake to remove debris from the intake screen (except HJ212 model). The pumping unit, which includes the Impeller (B) and Stator ©, increases the pressure, or “head”, of the flow. A wide variety of electric water jet propulsion options are available to you, There are 110 suppliers who sells electric water jet propulsion on, mainly located in Asia. World’s 1st all electric tugboat now at work in Istanbul. The WaveJet System includes the board of your choice, a WaveJet Power Pod, a Wrist Controller and a Charging Station. How a Waterjet Works A waterjet generates propulsive thrust from the reaction created when water is forced in a rearward direction. It works in relation to Newton’s Third Law of Motion – “every action has an equal and opposite reaction”. By emphasising sustainable innovation, total efficiency and data analytics, Wärtsilä maximises the environmental and economic performance … A clean, quiet, battery-powered miniature jet drive, it can be plugged into any WaveJet-ready personal watercraft, including kayaks, stand up paddle boards (SUPs) & surfboards. HamiltonJet uses cookies to ensure that you get the best possible experience on our website. feature. Super Sales Week; Shop; Dealer locator; Reseller application; SUPPORT . This is the latest generation of water jets and we are using impeller technology instead of conventional propulsion systems without any compromises in performance. No exposed propeller for complete safety around people in the water and marine life.