As of 2026-07-08, HMS Terror tops the list with 24 km/h.
- #1 HMS Terror — 24 km/h
1916 Erebus-class monitor
HMS Terror was an Erebus-class monitor built for the Royal Navy during the First World War in Belfast. Completed in 1916, she was assigned to the Dover Patrol where her primary duties involved bombarding German targets on the coast of occupied Belgium, particularly at the ports of Zeebrugge and Ostend. In October 1917 Terror was hit by three torpedoes, taking severe damage to the bow, and had to be towed into Portsmouth for repair. In April 1918 she participated in the Zeebrugge raid and... Read more on Wikipedia.
Wikidata - #2 HMS Abercrombie — 23 km/h
1942 Roberts-class monitor
HMS Abercrombie was a Royal Navy Roberts-class monitor of the Second World War. She was the second monitor to be named after General Sir Ralph Abercrombie. Read more on Wikipedia.
Wikidata - #3 HMS Roberts — 23 km/h
1941 Roberts-class monitor
HMS Roberts was a Royal Navy Roberts-class monitor of the Second World War. She was the second monitor to be named after Field Marshal Frederick Roberts, 1st Earl Roberts. Read more on Wikipedia.
Wikidata - #4 HMS Mersey — 22 km/h
1913 Humber-class monitor
HMS Mersey was a Humber-class monitor of the Royal Navy. Originally built by Vickers for the Brazilian Navy and christened Madeira, she was purchased by the Royal Navy in 1914 on the outbreak of the First World War along with her sister ships Humber and Severn. Read more on Wikipedia.
Wikidata - #5 Admiral Lazarev — 19 km/h
1867 Tower-class frigate
The Russian monitor Admiral Lazarev was the name ship of her class of monitors built for the Imperial Russian Navy in the late 1860s. She was assigned to the Baltic Fleet upon completion and remained there for her entire career. Aside from one accidental collision in 1871, her service was uneventful. The ship was reclassified as coast-defense ironclad in 1892 and often served as a training ship. There was an unsuccessful proposal to convert her into an aircraft carrier in 1910. Admiral Lazarev... Read more on Wikipedia.
Wikidata - #6 HMS M31 — 19 km/h
1915 M29-class monitor
HMS M31 was an M29-class monitor of the Royal Navy. Read more on Wikipedia.
Wikidata - #7 HMS M32 — 19 km/h
1915 M29-class monitor
HMS M32 was an M29-class monitor of the Royal Navy. Read more on Wikipedia.
Wikidata - #8 HMS M30 — 19 km/h
1915 M29-class monitor
HMS M30 was a Royal Navy M29-class monitor of the First World War. Read more on Wikipedia.
Wikidata - #9 Russalka — 18 km/h
1867 Charodeika-class monitor
Rusalka, was one of two Charodeika-class monitors built for the Imperial Russian Navy in the 1860s. She served for her entire career with the Baltic Fleet. Aside from hitting an uncharted rock not long after she was completed in 1869, she had an uneventful career. Rusalka sank in a storm in 1893 with the loss of all hands in the Gulf of Finland. In 1902, a memorial was built in Reval (Tallinn) to commemorate her loss. Her wreck was rediscovered in 2003, bow-down in the mud, which has prompted a... Read more on Wikipedia.
Wikidata - #10 Smerch — 15 km/h
monitor of the Imperial Russian Navy
Smerch was a monitor built for the Imperial Russian Navy in the early 1860s. She was designed by the British shipbuilder Charles Mitchell and built in Saint Petersburg. The ship spent her entire career with the Baltic Fleet. She ran aground and sank shortly after she entered service in 1865. Smerch was refloated and repaired shortly afterwards. She became a training ship sometime after 1892 and was stricken from the Navy List in 1904. The ship was hulked five years later and renamed Blokshiv... Read more on Wikipedia.
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