HMS Onslaught was a British attack submarine operated by the Royal Navy.

Design and construction

The Oberon class was a direct follow on of the Porpoise-class, with the same dimensions and external design, but updates to equipment and internal fittings, and a higher grade of steel used for fabrication of the pressure hull.

As designed for British service, the Oberon-class submarines were in length between perpendiculars and in length overall, with a beam of , and a draught of . Displacement was 1,610 tons standard, 2,030 tons full load when surfaced, and 2,410 tons full load when submerged. Her squadron assignment after 1983 is unknown.

Her patrols in the Mediterranean and Baltic seas from 1986 to 1988 are classified.

Decommissioning and fate

Onslaught was paid off in 1990, and broken up at Aliaga, Turkey in 1991.

References

Publications

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