This is a list of major ships of the Ottoman Steam Navy: Four 1100 ton class destroyer were ordered from Armstrong and subcontracted by Armstrong to Hawthorn Leslie.
Material prepared for them was used for M-class destroyer HMS Napier (ordered in 1914 launched in 1916 and sold in 1921).
[52] Four 700 ton class destroyers were ordered from Orlando, shortly before the war.
[52] Two submarines were ordered from in April 1914 Schneider-Laubeuf design to be delivered by December 1915.
[54] Two submarines were ordered on 29 April 1914 from Vickers and subcontracted by Vickers to Beardmore & Co. Materials prepared for them were used in the British submarines HMS E25 and HMS E26.