MHI-MME delivers 50th slow-steaming retrofit propeller

Mitsubishi Advanced Propellers Mark-W Mitsubishi Advanced Propellers Mark-W

MARCH 2, 2017 — Mitsubishi Heavy Industries Marine Machinery & Engine Co., Ltd. (MHI-MME), has delivered its 50th retrofit propeller since 2013.

The retrofit propellers are designed for slow steaming conditions where major improvements in fuel efficiency can be gained by applying an appropriate propeller design, such as MHI-MME's Mitsubishi Advanced Propellers (MAP) Mark-W.

Introduced in 2010, this ddesign can improve the propeller efficiency without sacrificing cavitation margin.

MHI-MME mainly supplies the retrofit propellers for large containerships, but also for tankers and LNG carriers. Deliveries have been made to both Japanese and international customers.

MHI-MME carries out an evaluation of the propeller efficiency improvement after propeller retrofitting and, in one case, confirmed that the propeller efficiency improvement reached about 8%, up to the limitation of engine load.

When retrofitting a propeller, MHI-MME can also propose buying the propeller currently installed on the customer's vessel, offering an opportunity for customers to reduce their initial investment. When the vessel is docked at Chinese shipyard, MHI-MME licensee Changzhou Zhonghai Marine Propeller Co., Ltd. (CZZH) may buy the currently installed propeller.

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