Documents and Correspondence

We are grateful to Douglas McNaught, former Naval architect at Campbeltown Shipyard, for sharing some of his archive with us. This archive entry includes correspondence between Heimdal Propulsion A-S, Norway and the Yard in Campbeltown and also performance diagrams for the PD-1850mm 19a (Ka-3-65 series) nozzle propeller. 3rd September, 1987….

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