Tug, Inshore and Dock

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Class overview
Name:Tug, Inshore and Dock
Builders:assembly and fitting out by Richard Dunston Ltd. (Thorne and Hessle), William Pickersgill & Sons Ltd., Southwick, Sunderland.
Operators:Ministry of War Transport
General characteristics
Type: tug boat
Displacement: 124 long tons
Length: 65 ft
Beam: 17 ft
Draught: 7 ft 4 in
Depth: 8 ft
Installed power: 220 ihp reciprocating steam engine
Propulsion: single screw
Speed: 8 knots
Capacity: 2 ton Bollard Pull

Tug, Inshore and Dock (TID) was a standardized British design for a tugboat drawn up and built during the Second World War.

One hundred and eighty two (TID-1 to TID-183) were built for the Ministry of War Transport.

As designed they were 65 feet long by 17 feet in the beam by 8 feet deep, measuring 54 GRT. Draught when laden was 7 ft 4 inches - a displacement of 124 tons. Propulsion was a 220 ihp 2 cylinder reciprocating steam engine driving a single screw. Steam was from coal or later oil - the change being to allow use in the Far East. They were capable of 8 and a half knots.

The hulls were built as eight separate sections by a group of manufacturers with spare welding capacity - normal British boat construction being riveted - building capacity was in short supply at shipbuilders but other non-shipbuilding industry was available. These 6 ton sections were transported by road or rail to the shipbuilder for assembly and fitting out. Production was fast at about one hull every five days.

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