| Designation | Name | Class | Classification | Hull Num | Service | Comments | Pictures |
| USCGC | Flagstaff | 73 SES | PGH/WPBH | 1 | 1974 - 1978 | Evaluation of hydrofoil concept in 1974 Fully operational 75 - 78 |
NS |
| USCGC | High Point | 115 SES | PCH | 1 | 1975 - 1975 | Evalution of hydrofoil concept Blew an engine and returned to the Navy |
NS |
| USCGC | Dorado | 109 SES | WSES | 1 | 1981 - 1982 | Evaluation of SES concept Did not become operational |
NS |
| USCGC | Sea Hawk | 109 SES | WSES | 2 | 1982 - 1994 | Operational SES Worked well but proved uneconomical |
|
| USCGC | Shearwater | 109 SES | WSES | 3 | 1982 - 1994 | Operational SES Worked well but proved uneconomical |
|
| USCGC | Petrel | 109 SES | WSES | 4 | 1983 - 1994 | Operational SES Worked well but proved uneconomical |