| No. | In Service | Withdrawn | Condition |
| QAB 1, QAB 77 | Converted from Q 77 - November 1963. Renumbered QAB 1 - March 1974. Scrapped - 24 March 1981 | ||
| QAB 2 | Converted from Q 106 - February 1964. Sold to Sims - 8 August 1980. Off register - 13 August 1980 | ||
| QAB 3 | Converted from Q 87 - February 1964. Scrapped - 24 March 1981 |