|Name||No||Yard No||Builder||Laid down||Launched||Comp||Fate|
|Saldıray||Germaniawerft, Kiel, Germany||2/1937||23.7.1938||6/1939||stricken 1958|
|Atılay||Valde & Gölcük, Istanbul||8/1937||19.5.1939||4/1940||sunk 14.7.1942|
|Yıldıray||Valde & Gölcük, Istanbul||9/1937||28.8.1939||1/1946||stricken 1957|
|Displacement standard, t|
|Displacement normal, t||
934 / 1210
|No of shafts||
2 B & W diesels / 2 BBC electric motors
|Power, h. p.||
3500 / 1000
|Max speed, kts||
20 / 9
|Endurance, nm(kts)||8000(10) /|
Saldıray, Atılay: 1 x 1 - 105/42 Ubts L/45 C/16, 6 - 533 TT (4 bow, 2 stern, 14)
Yıldıray: 1 x 1 - 105/45 Ubts L/45 C/16, 1 x 1 - 20/70 Oerlikon Mk 4, 6 - 533 TT (4 bow, 2 stern, 14)
|Electronic equipment||presumably GHG hydrophone|
|Diving depth operational, m||100|
Large submarines with high surfaced speed, ordered under the 1936 programme. Project 280 was developed by IvS on the basis of German submarine of IX series. Double-hulled, had atypical for German-built submarines CT construction: 105mm gun placed on it and was covered by light shield. Lead Saldıray begun passage to Turkey 2.4.1939 under German flag. Two other submarines were built under licence in Istanbul with German technical help, but on 70% from Turkish materials and by Turkish workers. Given fact predetermined a serious delay with completion: after a beginning of war German experts abandoned country, and shipbuilder not having proper experience could complete Atılay in 1940, and Yıldıray only after war.
mid-1940s, Saldıray, Atılay: + 1 x 1 - 20/70 Oerlikon Mk IV.
Atılay was lost 14.7.1942 being stricken by drifting mine at Canakkale (Dardanelles).