The technology was first developed and trialled at the British Admiralty's Board of Investigation and Research at Harwich on the Devon coast in England and the first operational use was at the Grand Fleet's anchorage at Scapa Flow.
The technology was first developed and trialled at the British Admiralty's Board of Investigation and Research at Harwich on the Devon coast in England. The first operational use was at the Grand Fleet's anchorage at Scapa Flow.