Burmeister & Wain diesels: 3,500 bhp (2,600 kW) 1× 100 mm gun TCG Atılay was a submarine of the Turkish Navy, which sank on 14 July 1942.

[2] Her name was chosen as Atılay personally by a written decree of the founder of the modern Turkey President Mustafa Kemal Atatürk (1881–1938).

On 14 July 1942, Atılay was tasked by the Fleet Command to conduct testing on underwater magnetic security lines in the Dardanelles Strait.

After a briefing held between 8:00 and 9:00, she dived in Morto Bay at 14:30 to leave the Strait, accompanied by a security boat on the surface.

[5] In 1994 after more than 50 years, Selçuk Kolay, with the support of the "Rahmi M. Koç Foundation for Museum Studies and Culture",[6][unreliable source?]