No | Name | Yard No | Builder | Laid down | Launched | Comm | Fate |
---|---|---|---|---|---|---|---|
PG1 | Yorktown | 255 | Cramp, Philadelphia | 5.1887 | 28.4.1888 | 4.1889 | stricken 9.1921 |
PG3 | Concord | 249 | NF Palmer, Chester | 5.1888 | 8.3.1890 | 5.1889 (completed), 2.1891 (commissioned) | stricken 7.1910, reinstated 12.1910, Naval Militia barrack ship 6.1911 |
PG4 | Bennington | 250 | Delaware River Iron Wks, Chester | 6.1888 | 3.6.1890 | 6.1891 | barge 1906, stricken 9.1910 |
Displacement normal, t | 1710 |
---|---|
Displacement full, t | 1921 |
Length, m | 74.5 |
Breadth, m | 11.0 |
Draught, m | 4.27 mean |
No of shafts | 2 |
Machinery | 2 HTE, 4 cylindrical boilers |
Power, h. p. | 3400 |
Max speed, kts | 16 |
Fuel, t | coal 370 |
Endurance, nm(kts) | PG1, 3: 3440(10) PG4: 4260(10) |
Armour, mm | CT: 51 |
Armament | PG1: 6 x 1 - 152/30 Mk III, 2 x 1 - 57/40 Hotchkiss Mk I, 2 x 1 - 47/40 Hotchkiss Mk I, 2 x 1 - 37/40 Hotchkiss heavy long Mk I PG3: 6 x 1 - 152/35 Mk III, 2 x 1 - 57/40 Hotchkiss Mk I, 2 x 1 - 47/40 Hotchkiss Mk I, 2 x 1 - 37/40 Hotchkiss heavy long Mk I PG4: 6 x 1 - 152/35 Mk III, 4 x 1 - 57/40 Hotchkiss Mk I, 4 x 1 - 37/40 Hotchkiss heavy long Mk I |
Complement | 187 - 201 |
Authorized under the Act of 3.3.1885 (Yorktown) and the other two under that of 3.3.87. These ships were originally rigged as three-masted schooners with no head gear, and were classed as cruisers in official British lists resembling the Archer class in some ways. The 152mm guns were in small sponsons, fore and aft on the upper and amidships on the main deck.
there was 51mm protection of CT.
1905, Yorktown: - 2 x 1 - 57/40; + 2 x 1 - 47/40 Hotchkiss Mk I, 2 x 1 - 37/40 Hotchkiss heavy long Mk I
1905, Bennington: - 4 x 1 - 57/40
1910, Yorktown: - 3 x 1 - 37/40
1910, Concord: + 2 x 1 - 47/40 Hotchkiss Mk I
1911, Concord: - 3 x 1 - 152/35, 2 x 1 - 57/40, 2 x 1 - 37/40; + 1 x 1 - 102/40 Mk III/IV/V/VI
1914, Yorktown: - 6 x 1 - 152/30; + 6 x 1 - 127/40 Mk III
1918, Yorktown: - 4 x 1 - 47/40; + 4 x 1 - 57/50 Driggs-Schroeder Mk II/III
Bennington had a disastrous burst of two boilers in 1905 and was not recommissioned, while Concord served as an accommodation ship from 1909 to 1914 and then as a quarantine station vessel under the Treasury until 1929.