The Yildiray was a Turkish Ay Class submarine of 934 tons displacement launched in 1939. The Yildiray was powered by two sets of Burmeister and Wain diesel engines providing a top speed of 20 knots surface and 9 knots submerged. She carried a complement of 44 and was armed with one 4 inch gun; one 20 mm anti-aircraft gun; four 21 inch torpedo tubes...
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