Self-Unloaders

Rt. Hon. Paul J. Martin

Great Lakes and St. Lawrence Seaway

MV Rt. Hon. Paul J. Martin is one on Canada Steamship Line’s self-unloading vessels. She was built in 1973 and converted to a self-unloader in 2003. Her home port is St. Catharines.

The equipment on board consists of hoppered holds with 35-degree slopes and hydraulically operated roller track gates. Two tunnel conveyors run the length of the vessel and feed two cross conveyors that run athwartship.

A single loop belt elevating system raises the material to the main deck and onto the vessel’s unloading boom. Self-contained PC workstations connected to a network permit remote control and automation of both the unloading and ballast systems.

MV Rt. Hon. Paul J. Martin is fitted with a dust covering and a fixed spill tray on the unloading boom. The unloading tunnel is ventilated for coal and is fully explosion-proof. Tunnel gates are operated by remote control.

MV Rt. Hon. Paul J. Martin is wholly owned and operated by CSL.

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Technical specifications
Classification Registered Lloyds Class + 100 A1
Year Built 1973, converted in 2000
Horsepower BHP: 8,046 | kW: 6,000
Deadweight 37,200 tonnes
Gross tonnage 23,989 tonnes
Net tonnage 7,916 tonnes
Length Overall 225.50 metres
Breadth moulded 23.76 metres
Length B.P. (Lpp) 222.53 metres
Depth (MLD) 14.75 metres
Draft (in fresh water) - Midsummer 9.23 metres
Draft (in fresh water) - Seaway 8.08 metres
Deadweight - Midsummer 36,113 LT | 36,700 tonnes
Deadweight - Seaway 30,167 LT | 30,700 tonnes
Length of Boom 79.00 metres
Number of Cargo Holds 5
Total Hold Capacity (including hatches) 40,207 cubic metres
Discharge Rate - Coal 4,000 tonnes/hour
Discharge Rate - Ore 5,200 tonnes/hour

Rt. Hon. Paul J. Martin