| C/N | Version | Built | History |
| 001 | | 1976 |  XZ227 : RN in 1993 deployed aboard HMS Exeter D89. type:HAS.3 /EX-420 815Sqn. 
|
| 004 | | | XZ229 : RN in 2009 type:HAS3SGM 815Sqn.
|
| 019 | | 1977 | XZ237 : RN in 1992 type:HAS3 /326 815Sqn.
|
| 049 | | 1977 | XZ240 : RN in 1992 type:HAS3 /363 829Sqn.
|
| 113 | | 1979 | XZ690 : RN in 2009 type:HMA8 /301 815Sqn.
|
| 153 | | 1980 | XZ698 : RN in 1992 type:HAS3 /479 815Sqn.
|
| 199 | | 1980 | XZ727 : RN in 2009 type:HAS3S /635 702Sqn.
|
| 217 | | 1981 | XZ735 : RN in 1992 type:HAS3GM /602 829Sqn.
|