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 November 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds


Henriksen Unveils Strongest SOLAS Boat Lifting Hook

H Henriksen of Norway has received SOLAS certification for a new off-load single-point boat lifting hook capable of holding up to 22.5-tonnes. The quick release

Evoqua, Drew Marine Ink BWMS Deal

Evoqua Water Technologies and maritime solutions and logistics expert, Drew Marine, have announced a partnership to provide a full compliance package for ballast water management.

Raytheon Anschütz Succeeds in SYNTACS SAT

Raytheon Anschütz, a leading integrator of naval integrated bridge systems, has successfully completed the Sea Acceptance Test (SAT) for the Synapsis Tactical Command

Marine Propulsion

Deltamarin to Designs First LNG Handysize Bulk Carriers

Deltamarin Ltd proudly announces that it has signed a contract to design the world’s first LNG handysize bulk carriers, which will point the way towards greener shipping of commodities.

Rolls-Royce to Exhibit Power Offerings at WorkBoat

Rolls-Royce will showcase its latest marine power innovations, including several MTU commercial marine products and systems, at the International Workboat Show 2015, December 1-3 in New Orleans.

Royston Appoints New US Distributor

Diesel power engineering specialist Royston has appoint a new U.S.-based distributor, citing growing interest in its advanced Enginei marine fuel management and monitoring systems.

Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Ship Electronics Ship Repair 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: 0.0984 sec (10 req/sec)