Modernisation
In 1890 she was selected for what was at the time called "modernisation". She was given new triple expansion engines and new boilers, and thereafter could make 15.75 knots (29.17 km/h) - less than a knot better than on her first trials. No attempt was made to bring her armament up to date, although the muzzle-loading rifles which she carried were by then totally obsolete, and the fitting of breech-loading cannon would not have been difficult. At this time she received four 12-pounder and ten 3-pounder quick-firers as a torpedo-boat defence.
Read more about this topic: HMS Monarch (1868)