| No. | In Service | Withdrawn | Condition |
| RM 1 | Fitted with diesel engine - c1951. Off register - 22 October 1953. Scrapped - 1953 | ||
| RM 2 | Off register - 21 October 1953 | ||
| RM 3 | Off register - 1 December 1948 | ||
| RM 4 | Scrapped - 1 October 1949 | ||
| RM 5 | Off register - 22 November 1949 | ||
| RM 6 | Scrapped - 7 September 1950 | ||
| RM 7 | Off register - 12 August 1948 | ||
| RM 8 | Off register - 6 December 1949 | ||
| RM 9 | Scrapped - 21 June 1956 | ||
| RM 10 | Off register - 12 September 1949 | ||
| RM 11 | Disappeared. Not found in the 1942 stocktake. May have been cannibalised to support the others | ||
| RM 12 | Off register - 20 May 1950 | ||
| RM 13 | Off register - 28 January 1953 | ||
| RM 14 | Scrapped - 11 April 1951 | ||
| RM 15 | Scrapped - 21 June 1956 | ||
| RM 16 | Off register - 12 August 1948 | ||
| RM 17 | Off register - 27 September 1949 | ||
| RM 18 | Off register - 6 December 1949. Reconditioned and back in service - c1950. Scrapped - 26 October 1951 | ||
| RM 19 | Off register - 27 September 1949 |