What is recorded here
This wreck was recorded as probably HMS Repro, but later diving evidence identifies the hull at the saved point as Lowdock instead. Repro was a Royal Navy minesweeping trawler lost with all aboard to a German mine in 1917; recent work revises the date from 26 April to 26 March and the mine layer from UC-41 to UC-77. Keeping the old possible name explains the record, while the corrected wreck identity prevents two vessels being merged.
The vessel and voyage
Repro was built at Beverley in 1910 as a 35-metre steel steam trawler for Grimsby fishing. Hired by the Royal Navy in February 1915, she became an armed minesweeper with a 12-pounder gun. Her wartime job was to help find or clear mines and escort shipping through dangerous water. That is the vessel history attached to this old possible name, but modern diving evidence says the hull at record 324317 is actually the different trawler Lowdock.
How it was lost
Repro was sunk by a German mine south-east of Tod Head with all aboard. Older accounts say 26 April 1917 and a UC-41 mine; newer research using Royal Navy records argues for 26 March and UC-77. Lowdock had its own history and loss, so Repro's mine event must not be used to explain the physical hull at this pin once that hull has been identified as Lowdock. The old catalogue suggestion and the corrected interpretation need to appear together.
Deaths and survival
All people aboard Repro were lost, including skipper Herbert Edward Thomson; the checked quick sources do not give a dependable complete number. No Repro survivor could describe the sinking. Those deaths belong to Repro and to her true resting place, not automatically to the wreck at record 324317. Correcting the hull to Lowdock matters for human history because each vessel carried a different crew and a different loss, even when two trawler wrecks look similar underwater.
What remains
The seabed wreck at this saved point was once thought probably Repro. Later investigation identified it positively as Lowdock, so it should no longer be described using Repro's name. A different wreck north-west of this point, about 35 metres long with an intact bow, visible boiler and engine and a badly damaged stern, is now considered the stronger Repro candidate, though no named object has made even that match absolute. This record preserves a corrected identification, not a Repro dive site.
Why it mattered
The correction is as important as the dramatic loss. Steam trawlers were built to similar plans, wartime positions could be approximate and seabed damage could hide their differences, so an early likely name could persist for years. Identifying this hull as Lowdock gives both ships back their own places and prevents Repro's dead being commemorated at the wrong wreck. It also sends future research toward the better candidate and the revised minefield evidence.
Sources for this account
- Trove Scotland, probable HMS Repro record 324317
- Scottish Shipwrecks, Repro and corrected Lowdock identification
- Lost in Waters Deep, HMT Repro archive research
Sources checked 2026-08-15.
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Photo credits
- Anne Burgess, Wikimedia Commons · CC BY-SA 2.0
- Scott Cormie, Wikimedia Commons · CC BY-SA 2.0
- Ralph Greig, Wikimedia Commons · CC BY-SA 2.0
- Andrew Wood, Wikimedia Commons · CC BY-SA 2.0
- JThomas, Wikimedia Commons · CC BY-SA 2.0
- Stanley Howe, Wikimedia Commons · CC BY-SA 2.0
- Bill Harrison, Wikimedia Commons · CC BY-SA 2.0
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