| No. | In Service | Withdrawn | Condition |
| FH 1 | Converted from GY 16986 - December 1982. Off register - c1988 | ||
| FH 2 | Converted from GY 4653 - May 1983. Off register - c1988 | ||
| FH 3 | Converted from GY 4933 - May 1983. Off register - c1988 | ||
| FH 4 | Converted from GY 5982 - May 1983. Off register - c1988 | ||
| FH 5 | Converted from GY 5417 - May 1983. Off register - c1988 | ||
| FH 6 | Converted from GY 16324 - May 1983. Off register - c1988 |