- Class: Humber - 3 monitors of 1912
- Displacement: 1,260 tons
- Dimensions: 267 (oa) x 49 x 5.5 ft.
- Machinery: Triple expansion 2 screws, I.H.P. 1,450 = 9.5 knots
- Armor: Belt 1.5-3 in., bulkheads 1.5 in.
- Armament: 3-6 in. (1x2+1x1), 4-3 pdr.
- Complement: 140
- Builder: Vickers
- Laid Down: 24 Aug 1912
- Launched: 17 Jun 1913
- Completed: Nov 1913
- Notes: One of three river monitors originally ordered by Brazil, but laid up on completion for inability to pay. Purchased by Great Britain at start of WWI.
- Service: Ready for RN service 25 Aug 1914 and immediately sent out for operations on Belgian coast. Returned to Chatham to add third 6 in. gun and additional armor. Sailed to Mediterranean, reaching Gallipoli Jun 1915. Refitted at Alexandria in Jan 1916 and then service in Egyptian waters. Guardship at Aqaba from Aug 1917 to Feb 1918, then to Mudros Oct 1918 and through Dardanelles to Istanbul after Armistice. Refitted at Devonport and sent to Murmansk, May 1919 for five months. Paid off Oct 1919 and sold in 1920 to Dutch salvage company for conversion to a crane barge; still in service in 1938.