Amphitrite 1896
| No | Name | Builder | Laid down | Launched | Comm | Fate |
| M2 | Amphitrite | Harlan & Hollingsworth, Wilmington / Norfolk NYd, Portsmouth | 1874 | 7/6/1883 | 23/4/1895 | stricken 7/1919 |
| M3, 1920- BM3 | Monadnock | Continental Iron Wks, Vallejo / Mare Is N Yd, Vallejo | 1875 | 19/9/1883 | 20/2/1896 | auxiliary 7/1921 |
| M4 | Terror | Cramp, Philadelphia / New York N Yd, Brooklyn | 1874 | 24/3/1883 | 15/4/1896 | TS late 1901, target 12/1915 |
| M5 | Miantonomoh | John Roach, Chester / New York N Yd, Brooklyn | 1874 | 5/12/1876 | 27/10/1891 | target 12/1915 |
|
Displacement normal, t |
3990 |
|
Displacement full, t |
|
|
Length, m |
BM2: 80.1 BM3: 79.9 BM4, 5: 80.2 |
|
Breadth, m |
16.9 |
|
Draught, m |
BM2, 3, 5: 4.42 BM4: 4.47 |
|
No of shafts |
2 |
|
Machinery |
BM2: HC (horizontal compound expansion), 4 Babcock & Wilcox boilers BM3: HTE, 4 cylindrical boilers BM4: HC, 6 cylindrical boilers |
|
Power, h. p. |
BM2, 4, 5: 1600 BM3: 3000 |
|
Max speed, kts |
BM2, 4, 5: 12 BM3: 14.5 (really 11.6) |
|
Fuel, t |
BM2, 4, 5: coal 270 BM3: coal 386 |
|
Armour, mm |
BM2, 3: steel, iron - belt: 229, deck: 44, barbettes: 292, turrets: 190, CT: 190 BM4: steel, iron - belt: 178, deck: 44, turrets: 292, CT: 190 BM5: steel, iron - belt: 178, deck: 44, turrets: 292, CT: 229 |
|
Armament |
BM2, 3: 2 x 2 - 254/30 Mk 2, 2 x 1 - 102/40 Mk 1/3/4/5/6, 2 x 1 - 57/(30 - 50) Mk 1 - 10, 2 x 1 - 37/(20 - 50) Mk 1 - 13 BM4: 2 x 2 - 254/30 Mk 2, 2 x 1 - 57/(30 - 50) Mk 1 - 10, 2 x 1 - 37/(20 - 50) Mk 1 - 13 BM5: 1 x 2 - 254/34 Mk 1 Mod 2, 1 x 2 - 254/30 Mk 1 Mod 1, 2 x 1 - 57/(30 - 50) Mk 1 - 10, 2 x 1 - 37/(20 - 50) Mk 1 - 13 |
|
Complement |
150 - 191 |
Ship project history: These monitors were resemblance of Civil War monitors but their building was very slow. Miantonomoh was commissioned when quite incomplete in October 1882 - March 1883, real completion of the ships was authorised under the Act of 3/8/1886 (Miantonomoh 3/3/1887) and ordered in 1887-1890. Iron-hulled. Only Amhitrite and Monadnock had barbettes, Terror had pneumatically powered mountings.
Ship protection: Steel armour deck was connected with upper edge of iron main belt.
Modernizations: none.
Naval service: Monadnock served as submarine tender and target tug from January, 1912 but redesignated IX17 only in July, 1921.
Amphitrite
© Ivan Gogin, 2008-10