Twenty vessels were ordered without serious scrutiny of the design.
A further 34 vessels, forming the third group, were ordered in 1940 and 1941.
Only 6 vessels were ordered for service with the Soviet navy.
Nine vessels below were all ordered on 8 November 1940.
The first vessels of this class were ordered in 1990.
The vessels were ordered on 22 February 2012 in an order worth £452 million.
The first two vessels were ordered on 3 April 1854, although neither was laid down for several years.
Five vessels were ordered and built under the 1905-06 Programme.
A final five vessels were ordered and built under the 1907-08 Programme.
In addition, more than 60,000 vessels were ordered to return to harbors.
