more than 1000 t of displacement:
| No | Name | Launched // Comm. | Builder | Displacement, t | Dimensions, m | Speed, kts | Machinery, power, hp | Armament | Fate |
| PG52 | Niagara (ex-Hi-Esmaro) | 7.6.1929 // 1.1941 | Bath I W | 1922 | 81.4x10.8x5.2 | 16 | 2diesels, 3000 | 2-76/50 | motor torpedo boat tender AGP1 1.1943 |
| PG53 | Vixen (ex-Orion) | 1929 // 2.1941 | Germaniawerft, Kiel, Germany | 3774 | 101.6x14.2x4.9 | 15 | 2diesels, 3600 | 4-76/50, 2 DCR | stricken 7.1946 |
| PG54 | St. Augustine (ex-Noparo) | 1929 // 1.1941 | Newport News | 1720 | 83.0x11.0x4.4 | 14 | turbo-electric | 2-76/50 | collision 5.1.1944 |
| PG55 | Jamestown (ex-Alder) | 1928 // 5.1941 | Pusey & Jones, Wilmington | 2250 | 89.6x11.6x4.9 | 15 | 2diesels, 3000 | 2-76/50, 6-20 | motor torpedo boat tender AGP3 1.1943 |
| PG56 | Williamsburg (ex-Aras) | 8.12.1930 // 101941 | Bath I W | 1820 | 74.3x11.0x4.3 | 16 | 2diesels, 2200 | 2-76/50, 3 DCT | general communications vessel AGC369 11.1945 (presidential yacht), stricken 4.1962 |
| PG57 | Plymouth (ex-Alva) | 1931 // 4.1942 | Germaniawerft, Kiel, Germany | 1500 | 80.6x14.1x5.8 | 15 | 2diesels | 1-102/50, 2-76/50 | sunk 5.8.1943 |
| PG58 | Hilo (ex-Moana) | 18.7.1931 // 61942 | Bath I W | 2350 | 75.4(pp)x11.6x | 14.5 | 2diesels, 3000 | 1-76/50 | motor torpedo boat tender AGP2 1.1943 |
| PG59 | San Bernardino (ex-Vanda) | 3.10.1928 // 6.1942 | Bath I W | 1768 | 73.2x11.1x4.9 | 17 | 2diesels, 3000 | 2-76/50, 2-40 | stricken 5.1946 |
| PG60 | Beaumont (ex-Carola) | 1930 // 6.1942 | Germaniawerft, Kiel, Germany | 1434 | 68.9x10.6x3.9 | 15.5 | 2diesels, 2200 | 2-76/50, 2-40 | for disposal 2.1947 |
| PG61 | Dauntless (ex-Delphine) | 2.4.1921 // 5.1942 | Great Lakes, Ecorse | 1950 | 78.5x10.7x5.0 | 16 | 2VTE, 3 boilers, 3000 | 2-76/50 | for disposal 6.1946 |
| WPG72, 4.1943- PG72, 12.1943- WPG122 | Nourmahal | 1928 // 8.1940 | Germaniawerft, Kiel, Germany | 2250 | 65.7x12.7x6.7 | 15 | 2diesels, 3200 | 2-102/50, 2 DCR | Coast Guard cutter, to Navy 6.1942, to Coast Guard 12.1943, for disposal 7.1948 |
| PG85 | Corsair | 1899 // 4.1942 | Fletcher, Hoboken | 1136 | 92.7x10.2x | 19 | 2-76/50 | survey vessel AGS3 Oceanographer 8.1942 |
Project history: ex-yachts, purchased by USN at war and used as gunboats.
Modernizations: None.
Naval service: Plymouth was torpedoed 15.8.1943 by German submarine U566 off Cape Henry, VA. St. Augustine sunk 5.1.1944 off Cape May, NJ, after collision with tanker Camas Meadows.
Niagara 1942
© Ivan Gogin, 2008-10