The two ships were laid down in early 1924 with that intent.

The first ship was laid down on September 22, 2011 and is planned to be launched in 2012.

The ship was laid down in 1938, but never launched.

The ship was laid down in 1913 and launched on 18 February 1915.

Two ships from these designs would be laid down per year until 1928.

The first ship in the class was laid down on 23 December 2004.

Two more ships of the class were later laid down, but never completed.

The ship was laid down in 1863 and launched on 20 August 1864.

The first ship would have been laid down in June of that year.

All ten ships were laid down in 1915 and 1916.