MHI hits 100th retrofit propeller order
By Jack Burke15 December 2021
Improves fuel efficiency
Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd. (MHI-MME), has achieved 100 orders of its retrofit propeller, which began delivery in 2013.
The retrofit propeller is designed for slow steaming conditions by the limitation of engine load and thereby improving fuel efficiency. The retrofit propeller efficiency improvement in a certain vessel reached about 8%, up to the limitation of engine load. Moreover, MHI-MME applies the design for the retrofit propeller to Mitsubishi Advanced Propellers (MAP) Mark-W, which was launched in 2010 and can improve the propeller efficiency without sacrificing cavitation margin.

The retrofit propellers are designed for large containerships, LNG carriers and tankers, which are often applied in slow steaming.
And orders for retrofit propellers have been increasing due to the need to comply with EEXI regulations, the company said.
Furthermore, when retrofitting a propeller, MHI-MME also proposes to buy the propeller currently installed on the customer’s vessel, thereby offering an opportunity for customers to reduce their initial investment.
MHI-MME will continue to propose the retrofit propeller for the needs of slow steaming.