
Overview
IJN minesweeper W-102 is documented as the same physical Hong Kong Bangor hull begun for British service and captured incomplete in 1941. The hull had been ordered or laid down under the earlier construction name Seaford / Waglan.
W-102 is associated with Japan and Imperial Japanese Navy. It belonged to Bangor class, so the class page provides the shared design history while this page concentrates on the individual ship.
Construction and identity
The available construction record identifies W-102 as built by Taikoo Dockyard, Hong Kong, laid down on 1941-07-12, launched on 1943-03-20, and completed on 1944-09-28.
The ship's documented identity includes alternate or later names HMS Seaford, HMS Waglan, Seaford, and Waglan and service with Imperial Japanese Navy.
Service history
Captured incomplete at Hong Kong; completed and commissioned by the IJN as minesweeper W-102.
The ship's configuration should be interpreted through the documented class and the dates attached to this individual vessel; equipment should not be assumed to have remained unchanged throughout service.
Class context: Bangor class
The Bangor class was a British wartime minesweeper program designed for rapid mass production in smaller yards. Machinery shortages produced an unusually diverse class: diesel, high-speed reciprocating, slow-speed reciprocating, and turbine-powered groups shared the same operational purpose but differed materially in dimensions, displacement, and machinery.
As a member of Bangor class, W-102 shared the class's documented design framework and intended roles of Minesweeping, Convoy escort, Anti submarine warfare, Coastal escort, and Patrol. Individual refits, transfers, and wartime changes belong to this ship only when separately documented.
Later service and disposition
The recorded final status is unknown.
W-102 matters as an individual career within Bangor class, allowing class-wide design history to be separated from this ship's own construction, identities, service, and fate.
Class relationship
This ship is recorded as a member of Bangor class. Shared design history belongs on the class page; this page concentrates on the individual hull where evidence is available.
Sources and further reading
- BANGOR minesweepers, VTE-engined (BLYTH) (1940 - 1944) ↗Navypedia · accessed 2026-09-19
- Bangor class Minesweepers - Allied Warships of WWII ↗uboat.net · accessed 2026-09-19
- Naval Lore Corner No. 123 — The “Bangor” Sweepers ↗The Crowsnest · accessed 2026-09-19
- Conway's All the World's Fighting Ships, 1922–1946Conway Maritime Press
- W-101 Class Minesweepers / W-101 and W-102 records ↗CombinedFleet.com · accessed 2026-09-19
- Bangor-class minesweeper ↗Wikipedia contributors · accessed 2026-09-19
- BANGOR minesweepers, turbine-engined (BEAUMARIS) (1940 - 1942) ↗Navypedia · accessed 2026-09-19
- BANGOR minesweepers, diesel-engined (BANGOR) (1940 - 1942) ↗Navypedia · accessed 2026-09-19
- HMCS Melville ↗Royal Canadian Navy · accessed 2026-09-19
- HMCS Cowichan ↗Royal Canadian Navy · accessed 2026-09-19
- HMS Bangor, minesweeper ↗Naval-History.Net · accessed 2026-09-19
- Indian Navy — historical transition from Royal Indian Navy ↗Government of India · accessed 2026-09-19