Two vessels of the class became breakwaters in less than 15 years after their construction.

Two more vessels of the class are under construction.

All the vessels of the class were modified and modernized in the late 1990s.

All 12 vessels of the class were named after rivers.

She was one of 38 named vessels of the class that were completed in 1917-1918.

At least three vessels of the class are planned.

The ship was launched on 17 September 1875, the last vessel of the class to be completed.

The vessels of the class were fast, most recording 13kts large and 10kts close-hauled.

The first vessel of the class, Fantasy, entered service in 1990.

Other vessels of the class were armed by 2009.