Waterjet Retrofit: Direct Performance Comparison

Press Release
Monday, March 11, 2013
Catamaran Froya: Photo credit MJP

Waterjets from Marine Jet Power (MJP) were recently used to solve some significant propulsion issues.

Two recent refits of waterjets were unique in that a direct comparison between waterjet brands could be obtained, while everything else remained unchanged.

In the first case, the operator of a 10-year-old vessel decided to change to MJP DRB jets due to significant service and corrosion issues on the existing waterjets. The vessels were originally equipped with axial flow jets. MJP DRB mixed flow jets with intakes completely made of GRP were installed in one of the existing hulls with the rest of the equipment, including the engine, remaining unchanged.

Sea trials following the refit showed stunning results: ship speed increased from 38 to 43 knots only thanks to the change of waterjets and the overall efficiency was increased from 57% to 67%.

In a second case, according to MJP, a shipyard retrofitted MJP DRB mixed flow jets and subsequently under the supervision of DNV it was found that they consumed 8,5% less power at the same operating speed.

Company information: In 2012 MJP Waterjets acquired Ultra Dynamics. The new group is named Marine Jet Power and has offices in Sweden, UK, US, Italy and Singapore as well as sales and service representatives in well over 30 countries. The company group product range comprises MJP CSU, DRB and Ultrajet series.
 
 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Voice-data Communications and HDTV in One System

PDQ’s OneSource System provides long range cell, wi-fi and high definition TV in one system for mobile users.   San Diego wireless company PDQ Connect has developed

Cavotec, ABB Partner on Shore-to-ship Power

Cavotec and ABB have signed a Memorandum of Understanding to jointly offer complete shore-to-ship power solutions globally. Such solutions allow vessels to plug

Ulstein Verft's First Wind Service Vessel Launched

Shipbuilder Ulstein Verft has launched its first vessel within the renewable energy segment, and also the first with the newly-developed X-STERN hull line design.

Marine Propulsion

Pacific Nations Take a Stand on Shipping Emissions

On Earth Day, Pacific leaders queued among 175 countries to sign the Paris Agreement in New York. Earlier that day in London, the International Maritime Organization (IMO),

SCHOTTEL Debuts EcoPeller with High-torque Gears

Propulsion and steering systems manufacturer SCHOTTEL has unveiled its new EcoPeller (SRE), which it said offers improved efficiency and robustness. Playing a

Cavotec, ABB Partner on Shore-to-ship Power

Cavotec and ABB have signed a Memorandum of Understanding to jointly offer complete shore-to-ship power solutions globally. Such solutions allow vessels to plug

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pod Propulsion Salvage Ship Repair Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0651 sec (15 req/sec)