| Navy | The Royal Indian Navy |
| Type | Sloop |
| Class | [No specific class] |
| Pennant | J 81 |
| Built by | W. Simons & Co. Ltd. (Renfrew, Scotland) |
| Ordered | |
| Laid down | |
| Launched | 13 Mar 1925 |
| Commissioned | 1934 |
| End service | |
| History | Former Government Cable ship Patrick Stewart. Taken over by the Royal Indian Navy in 1932 and converted to a surving ship in 1934. Served as patrol sloop during the Second World War. Sold in 1951. Displacement: 1572 tons (1890 tons, full load) Dimensions: 226 (pp), 247 (oa) x 37.5 x 13.5 (16.25 full load) feet Machinery: 2 Boilers, 2 shafts, reciprocating engine, IHP 2400 = 12.5 knots Armament: 1 4.7" gun, 2 20mm (AA) (2x1), 2 .303" (AA) (2x1) Completment: 109 |
Commands listed for HMIS Investigator (J 81)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | Lancelot Sanderson, RIN | 1 Oct 1935 | 29 Sep 1939 |
| 2 | Cdr. Henry Richmond Inigo-Jones, RIN | 29 Sep 1939 | Mar 1940 |
| 3 | Lt.Cdr. Hector Eric Felsor Paine, RIN | Mar 1940 | 8 Apr 1940 |
| 4 | Lt.Cdr. Martin Henry St.Leger Nott, OBE, RIN | 8 Apr 1940 | 16 Jul 1940 |
| 5 | Lt. William Joseph Graham Hughes, RIN | 16 Jul 1940 | 11 Jan 1941 |
| 6 | Cdr. Harold Charles Beauchamp, RIN | 11 Jan 1941 | 28 Dec 1941 |
| 7 | Lt. Maurice Gilbert Collins, RIN | 28 Dec 1941 | mid 1942 |
| 8 | R M Snelgrove, RINR | mid 1942 | 1 Dec 1942 |
| 9 | T/Lt. Roy Walker Emerson, RINR | 1 Dec 1942 | 15 May 1943 |
| 10 | W H Currie, RINVR | 15 May 1943 | 1 Dec 1944 |
| 11 | A/Lt.Cdr. Anthony Troughton Bond, RIN | 1 Dec 1944 | 25 Aug 1945 |
| 12 | T/A/Lt.Cdr. George Alfred Foster, RINR | 25 Aug 1945 | 22 Oct 1945 |
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