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Sea-King II

Built 1921Twin ScrewNova Scotia Steel & Coal Co.

Sea-King II was a steel twin-screw motor yacht of 138.9 ft length on the waterline, built in 1921 by Nova Scotia Steel & Coal Co. at New Glasgow, Canada. She was constructed to design 248, developed by A. Mylne & Co. in 1918. With a beam of 28.66 ft and draft of 6 ft, she represented the firm's capability in designing substantial motor vessels for the North American market during the early twentieth century.

Ownership

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Crew

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Specification

LOA (spar)45.7 m · 150 ft
LWL42.3 m · 139 ft
Beam8.7 m · 29 ft
Draft1.8 m · 6 ft
Depth2.8 m · 9 ft
Gross tonnage381.57
Net tonnage50.08
TM tonnage477

Details

Built1921
BuilderNova Scotia Steel & Coal Co., New Glasgow, Canada
ConstructionSteel

Registry & Identity

Signal lettersTQFV
Official no.151281

Design Archive

Archive drawing — Sea-King
Misc

Design No. 248

Sea-King

Designed 1918

Twin Screw

View in design archive

Historical Context

Design 248 was developed by A. Mylne & Co. in 1918, during a period when the firm was increasingly engaged with motor yacht design. The twin-screw motor yacht type gained prominence in the early twentieth century as diesel and petrol engines became more reliable and efficient. A. Mylne & Co., established in 1896, maintained a reputation for sound, practical yacht design across sail and power, and their willingness to work with builders beyond British yards—such as Nova Scotia Steel & Coal Co.—reflected the firm's growing international clientele. Sea-King II's construction in Canada suggests patronage from a North American owner, indicative of the firm's commercial reach between 1918 and the 1930s.

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