Glen-class tug (1943)

Launch of the Second World War tugboat HMCS Glenside.
Class overview
Name:	Glen class
Operators:	Royal Canadian Navy
Built:	1943–1945
In commission:	1943–1979
Completed:	20
General characteristics
Type:	Tugboat
Displacement:	Steel-hulled : 170 long tons (173 t) Wooden-hulled : 155 long tons (157 t)
Length:	Steel-hulled : 80 ft 6 in (24.54 m) Wooden-hulled : 80 ft (24 m)
Beam:	Steel-hulled : 20 ft 7 in (6.27 m) Wooden-hulled : 18 ft 4 in (5.59 m)
Draught:	Steel-hulled : 9 ft 8 in (2.95 m) Wooden-hulled : 10 ft 4 in (3.15 m)
Propulsion:	Steel-hulled : Long House-type 1 × 320 hp (239 kW) Vivian 8-cylinder diesel engine (400 hp (298 kW) with supercharger) Short House-type 1 × 400 hp (298 kW) Enterprise 6-cylinder diesel engine Wooden-hulled : Glendevon & Glendon : 1 × Vivian 6-cylinder diesel engine Glenholme : 1 × Enterprise 6-cylinder diesel engine

The Glen-class tugs were a class of tugboats of the Royal Canadian Navy built during the Second World War. There were three designs of the tugboat; two were of steel-hulled construction and the other was wooden-hulled. Of the 20 of the class built, 16 were of the steel-hulled type; 11 built by Russel Bros. of Owen Sound, Ontario and 5 by Canadian Dredge & Dock Co., Kingston, Ontario. Of the four wooden-hulled type; three were built by McKenzie Barge and Derrick, Vancouver, British Columbia, and one by LeBlanc Shipbuilding, Weymouth, Nova Scotia. All but one – Glendyne – were sold into commercial service after the war.

The steel-hulled tugs all had the same hull design and dimensions, but were of two types; the Long House (Design A) and the Short House (Design B).

The Long House-type had the main deck house extending aft over the engine room, with the bulwarks extending the entire length of the hull. They were powered by an 8-cylinder diesel engine built by the Vivian Engine Works, Vancouver.

The Short House-type had a shorter main deck house with a trunk style house over the engine room, with raised bulwarks forward and aft. They were powered by a 6-cylinder diesel engine built by the Enterprise Engine & Foundry Company, San Francisco.

Three wooden-hulled tugs were built by McKenzie Barge and Derrick of Vancouver, the Glendevon, Glendon and Glenholme. Glenholme was completed in 1945, but was never commissioned into naval service.

The Glenwood, built by LeBlanc Shipbuilding, Weymouth, Nova Scotia, was incomplete when the war ended. She was sold to St. John Drydock & Shipbuilding Co., completed and renamed Ocean Weka.

Plus five built by Canadian Dredge & Dock Co., types and names unknown.