Construction SM UB-55

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she built ag weser, bremen , following under year of construction, launched @ bremen on 9 may 1917. ub-55 commissioned later same year under command of kptlt. ralph wenninger. type ub iii submarines, ub-55 carried 10 torpedoes , armed 8.8 cm (3.46 in) deck gun. ub-55 carry crew of 3 officer , 31 men , had cruising range of 9,020 nautical miles (16,710 km; 10,380 mi). ub-55 had displacement of 516 t (508 long tons) while surfaced , 646 t (636 long tons; 712 short tons) when submerged. engines enabled travel @ 13.4 knots (24.8 km/h; 15.4 mph) when surfaced , 7.8 knots (14.4 km/h; 9.0 mph) when submerged.







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