John B. Aird (ship)

John B. Aird transitting the Welland Canal
History
Name	John B. Aird (1983–2017) John B. (2017)
Owner	Algoma Central
Operator	Algoma Central
Port of registry	Sault Ste. Marie, Ontario (1983–2017) Freetown, Sierra Leone (2017)
Builder	Collingwood Shipbuilding, Collingwood, Ontario
Yard number	224
Launched	18 December 1982
Completed	June 1983
In service	1983
Out of service	2016
Identification	IMO number: 8002432
Fate	Broken up, 14 June 2017
General characteristics
Type	Bulk carrier
Tonnage	22,881 GT 30,958 DWT
Length	222.5 m (730 ft 0 in) oa 219 m (718 ft 6 in) pp
Beam	23.5 m (77 ft 1 in)
Installed power	2 diesel engines, 7,054 kW (9,459 bhp)
Propulsion	1 shaft, controllable pitch propeller
Speed	12 knots (22 km/h; 14 mph)

John B. Aird was a self-discharging lake freighter/bulk carrier that was launched in 1983 and served on the Great Lakes and Saint Lawrence Seaway until 2017. The vessel was owned and operated by Algoma Central during that time, which had named the vessel for a former chairman of the Algoma Central Railway. Prior to the construction of Algoma Equinox in 2013, John B. Aird was the last vessel built for the company.