Specifications | |
| Builder | Boeing Marine Systems |
| Power Plant | Foilborne one gas turbine, 18,000 shaft horsepower, waterjet propulsion units; hullborne |
| Length | Foils extended, 133 feet; foils retracted, 145 feet |
| Beam | 28 feet |
| Draft | |
| Displacement | 255 tons full load |
| Armament | 8 - Harpoon 1 - 76mm gun |
| Speed | Foilborne, in excess of 40 knots; hullborne, 12 knots |
| Crew | 25 |
Ships | ||||||
| Name | Number | Builder | Homeport | Ordered | Commissioned | Decommissioned |
| USS Pegasus | PHM-1 | Boeing | Key West | 02 Feb 1973 | 09 Jul 1977 | 30 Jul 1993 |
| USS Hercules | PHM-2 | Boeing | Key West | 20 Oct 1977 | 18 Dec 1982 | 30 Jul 1993 |
| USS Taurus | PHM-3 | Boeing | Key West | 20 Oct 1977 | 10 Oct 1981 | 30 Jul 1993 |
| USS Aquila | PHM-4 | Boeing | Key West | 20 Oct 1977 | 26 Jun 1982 | 30 Jul 1993 |
| USS Aries | PHM-5 | Boeing | Key West | 20 Oct 1977 | 18 Sep 1982 | 30 Jul 1993 |
| USS Gemini | PHM-6 | Boeing | Key West | 20 Oct 1977 | 29 Jul 1982 | 30 Jul 1993 |