From analysis to sea trials

Repowering a ship often aims to increase engine power and thus to directly enhance the overall performance of the ship.

It is often done at the end of the engine life, or when the ship has to meet new operating requirements.

The overall cost of this action depends on the type of vessel, the engine, and the necessity or not to also change other components of the propulsion system.

The various items to be replaced may be:

  • The transmission: is it necessary to change the unit, or only to change the reduction ratio?
  • Line shaft and stern tube: will the diameter of the shaft and tube still fit the new engine?
  • Propeller: will the propeller diameter still fit the new situation?

These 3 elements are directly linked to the ship's performance, and may represent as much as 30 % of the overall cost of a repowering project.

Masson-Marine Engineering investigate and analyse the elements that might be maintained, changed, or replaced, in order to determine the best performance.

During this analysis, Masson-Marine will be able to give you the results of each change in terms of technical data such as speed, bollard pull, and the overall power of the craft (power available for auxiliary equipment).

After a simple analysis of your project, we will identify those elements to be changed or replaced in order to optimise the cost and, above all, to provide a propulsion system with the highest possible efficiency. Do not hesitate to ask for further information.

Have a question?

Let us call you back...



Europort - November 2017 - Holland
Europort 2017 Masson
We will participate to Europort trade show with our partner ADS Van Stigt. We will be happy to welcome you from November 7th to 10th 2017 - stand n°1310 - Ahoy Exhibition Center, Rotterdam.
Expomar May 25 - 26 - 27 - 28 2017
Masson Expomar 2017
Please come to visit us on Burela Exhibition. We will welcome you with pleasure on our spanish subsidiay's booth S103-104-105!
Masson Marine went with President François Hollande to South East Asia
group picture
Masson Marine was part of the French delegation during the state visit of President François Hollande to South East Asia
Indonesian Masson Success Story
MASSON MARINE contacted Jakarta office for several actions: Meeting programm with Singapore director (...) Read more
HALIEUTIS 2017 - Feb 15-19
Masson Halieutis
Our staff will welcome you with pleasure from Feb.15 to 19th on Halieutis fair in Agadir - Morocco. Do not hesitate to visit our booth, C48-c.
Euromaritime 2017 Paris
Masson Euromaritime 2017
Jan 31st - Feb 02nd We will welcome you with pleasure to Euromaritime event on our booth A18. Do not hesitate to visit us. PARIS - PORTE DE VERSAILLES Hall 3
Inside marine
Clic here to access to a recent article published for masson.
SMM 2016 Hamburg
SMM 2016 Masson
Masson collaborators will have the pleasure to meet you during the fair, from september 6th to 9th. Please don't hesitate to visit us on our booth, - Hall A4-419 - Hamburg Messe Fairground
ISO Renewal
ISO 9001 is renewed for Masson Marine who highly cares about customer satisfaction (...) Click to read more
Masson Marine being promoted by its district. Yonne Développement makes an editorial on its web site. Please have a look at it on the link.
Masson in Indonesian Ministry
Rewarding meeting with the Ministry of Transport in Jakarta: We will take part to a huge project in Indonesia. We are very grateful for their welcoming.
Happy Birthday Masson Marine!
10 Years already... Whole staff is proud to have taken part to Masson Marine's sucess: Many nice & prosperous collaborations realized already and many others still to come!
Asia Pacific Maritime 2016 Singapore
Masson Marine Propulsion will have the pleasure to meet you, on its booth, D-T36, from March 16th to 18th 2016, at "Marina Bay Sands Expo & Conv. Center" - SINGAPORE.
Future Green Vessel
Masson took part at CORICAN successful 1st conference on research and naval innovation within energy transition.
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