SM UB-80 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned into the German Imperial Navy on 8 September 1917 as SM UB-80.
UB-80 was surrendered to Italy in accordance with the requirements of the Armistice with Germany on 26 November 1918 and broken up at La Spezia in May 1919.
Construction
She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 4 August 1917. UB-80 was commissioned later that same year under the command of Kptlt. Max Viebeg. Like all Type UB III submarines, UB-80 carried 10 torpedoes and was armed with a deck gun. UB-80 would carry a crew of up to 3 officer and 31 men and had a cruising range of . UB-80 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.
Summary of raiding history DateNameNationalityTonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.Fate26 November 1917Ango7,393Damaged27 November 1917Bleamoor3,755Sunk30 November 1917Kalibia4,930Sunk4 December 1917Vav1,255Sunk5 December 1917Armenia5,463Damaged11 January 1918Barsac1,806Sunk11 January 1918Mississippi6,687Damaged14 January 1918Arthur Capel822Sunk17 January 1918Kingsdyke1,710Sunk17 January 1918War Thistle5,166Damaged4 March 1918Polkerris943Sunk5 March 1918Uskmoor3,189Sunk7 March 1918Martha653Sunk9 March 1918Grane1,122Sunk15 April 1918Ailsa Craig601Sunk16 April 1918George Harper1,613Damaged18 April 1918Bamse958Sunk21 April 1918Westergate1,760Sunk25 April 1918Sevilla1,318Sunk7 June 1918Axpe Mendi2,873Sunk10 June 1918Stryn2,143Sunk11 June 1918Boma2,694Sunk30 July 1918HMS Stock Force732Sunk6 September 1918Audax975Sunk9 September 1918Taurus1,239Sunk
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