| Name | SEA FOG (3952) |
| Type | Naval Drifter |
| Year | 12/1918 |
| GRT | 96 |
| Engines | Steam |
| Builder | WEBSTER & BICKERTON |
| At | GOOLE |
| Launch date | 11/1918 |
| Yard number | 45 |
| Owners | The Admiralty |
| History | Sold to Ministry of Agriculture and Fisheries in 1920 and registered at Lowestoft as SEA FOG LT710. Sold to H. Croft Baker in 1921 as SEA FOG GY1300 and transferred in 1922 to Strand Sea Fishing Co. as SELIMUS GY1300. Sold in 1924 to L. M. Bourgain, Dieppe and renamed SAINT PIERRE D'ALCANTARA DI2112. Sold in 1925 to Wm. Bruce and others and renamed PRIMORDIAL INS81 then in 1936 to W. Cardno, Fraserburgh as PRIMIRDIAL FR200. Requisitioned for harbour service in WW2. Sold in 1945 to Walker Steam Fishing, Aberdeen. |
| Fate | Broken up in 1952. |
SEA FOG as PRIMORDIAL (FR200)