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B9 Shipping

Commercial vessel scale model undergoing hydrodynamic testing at the Wolfson Unit towing tank.

Wind-assisted ships, and the fuel to run them

Since it was formed in 1998, B9 Shipping has developed vessel concepts that combine proven technologies in new ways, pairing automated wind propulsion with renewable fuels for lower-carbon coastal and regional shipping.

B9 Shipping is the planned buyer (offtaker) of the e-methanol in B9's Maritime Power-to-X project, which links fuel production, storage and bunkering to demand from ships. The offtake role is meant to test whether the fuel can be sold at a workable price.

Concept rendering of a B9 cargo ship with three automated square-rigged sail systems
Concept design for a B9 wind-assisted cargo ship, by Humphreys Yacht Design

The ship design

  • Automated sails

    Sails are set on freestanding, deck-mounted masts with hydraulically operated yards. With no stays or shrouds, the masts leave the hatches clear for cargo handling, and the yards can be trimmed for better upwind sailing.

  • Ships for real routes

    Development work has covered hull form, mast integration, cargo access and ship-to-shore compatibility for coastal bulk and chemical tanker routes.

  • Renewable fuel

    Wind provides part of the propulsion; engines or fuel cells running on e-methanol provide the rest. E-methanol is liquid, so it is far easier to store and bunker than hydrogen gas.

    How green methanol is made

Tested with models and simulation

The development programme has included performance analysis, voyage simulation and route analysis, with designs refined for the weather en route and the limits of each port entry.

Scale models have been tested in a wind tunnel and in towing tanks, at facilities including the Wolfson Unit, to check the computer modelling against physical results.

Scale model of a three-masted B9 vessel concept in a wind tunnel at the Wolfson Unit
Wind-tunnel test of a three-mast scale model at the Wolfson Unit

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