seaward defence boat

She was later reclassified as a Seaward Defence Boat.

The Ford class seaward defence boats were built for the Royal Navy in the 1950s.

The hull's design is essentially the same as of Seaward Defence Boats (SDB) Mk 2 class in service of Indian Navy.

The Seaward Defence Boats are large patrol craft designed by Mazagon Dock Limited (MDL) and built by Garden Reach Shipbuilders and Engineers (GRSE) for the Indian Navy.

In view of their later expanded combat roles in some Commonwealth navies some HDMLs were re-designated as Seaward Defence Motor Launches (SDML) or Seaward Defence Boats (SDB).

The outcome of these talks was that the base was transferred to the Union on 2 April 1957 under the terms of the Simonstown Agreement, and that the Navy would purchase four additional frigates, ten coastal minesweepers and five seaward defence boats from Britain.