Revealing the Identity, History and Nature Conservation Status of Royal Navy Vessel Steam Pinnace 744, in Lyness, Scapa Flow, Orkney Isles Article Swipe

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Navy Archaeology Hydrography Maritime history History Oceanography Side-scan sonar Geography Sonar Geology

Joanne S. Porter , Bob Anderson , Clare Fitzsimmons , Kevin J. Heath , Laken L. Hives , James M. Mair , Rachael Priest , Philip Robertson , William Sanderson ·

YOU? · · 2023 · Open Access · · DOI: https://doi.org/10.1080/10572414.2023.2256411 · OA: W4388267630

Presence of a steam pinnace at Lyness, Orkney Islands, was first documented in United Kingdom Hydrographic Office (UKHO) records by letter from a local scallop diver. Historic Environment Scotland (HES) tasked ORCA and Sula Diving Ltd to document this wreck during the Scapa Flow 2013 Marine Archaeology Survey. Side scan sonar and oral history provided initial clues to the identity. Reference to archival data and the Pinnace 199 renovation project (Portsmouth Historic Shipyard) enabled confirmation of its identity and understanding of how the vessel came to lie on the seabed off Rinnigal Pier. Photogrammetry revealed preservation status and during biological surveys two species of national conservation importance were recorded.