german type submarine boat german_imperial_navy german kaiserliche_marine world war submarine sunk british submarine ordered november laid shipyard bremen february little metres length displaced tonnes long tons depending surfaced submerged carried torpedoes bow torpedo tubes armed deck mounted machine gun broken sections shipped rail antwerp launched april commissioned spent entire career sank merchant ships half british fishing vessels boat responsible sinking new british destroyer recruit converted replacement torpedo tubes torpedoed british submarine british east coast men board commander survived attack design construction german_army rapid advance north_sea coast earliest stages world war german_imperial_navy found suitable submarines operated narrow shallow seas flanders project design effort begun mid august produced type design small submarine shipped rail port operations quickly assembled constrained railroad size limitations design called boat metres long displacing tonnes long tons torpedo tubes sister boat comprised order submarines placed november little months planning class began laid bremen february built metres long metres draught metres single brake horsepower cylinder diesel engine surface travel single shaft horsepower electric motor underwater travel attached single propeller shaft speeds knots mph surfaced knots mph submerged moderate speeds sail nautical miles surface nautical miles submerged batteries like boats class rated diving depth metres completely seconds armed centimeter torpedoes bow torpedo tubes outfitted single millimeter machine gun deck standard complement consisted officer thirteen enlisted men work complete yard rail shipment process shipping boat involved breaking submarine essentially knock kit boat broken approximately pieces loaded railway early sections shipped antwerp assembly typically week process assembled launched april loaded barge taken canals underwent trials early career submarine commissioned german_imperial_navy command year old time boat commander june joined german des organized march joined flotilla germany midst submarine offensive begun february campaign enemy vessels german defined war zone german encompassed waters united_kingdom sunk vessels neutral countries attacked definitively identified enemy vessels operating false flag june days joining flotilla sank british fishing vessels patrolling nautical miles sunken ships sailing vessels traditionally rigged red sails stopped boarded crewmen sunk explosives june torpedoed sank ton british cargo ship nautical miles days later boat torpedoed british steamer hit ton ship master beached sands save cargo wheat shipped montreal ship complete loss largest ship sunk month action totals ships sunk tons half flotilla june total tons lives lost june victims successes came consecutive days late july 27th westward ton boarded sunk crew nautical miles southeast following day ton torpedoed warning quarter nautical mile men died ship cargo iron ore sent flanders flotilla sank ships august add total day span september accounted ships sunk flotilla month 7th sank fishing emblem victorious nautical miles september sank ton vicinity germany submarine offensive suspended september chief admiral response american demands german submarines sunk line steamer high profile august september directive ordered boats south western approaches required submarine activity north_sea conducted strictly prize regulations sink vessels months resumed attacks january sinking sunshine nautical miles second submarine offensive early british blockade germany beginning effect germany imports royal_navy stopped seized cargo destined germany quantity cargo sunk german boats submarine offensive result german_imperial_navy began second offensive merchant shipping february final ground rules agreed enemy vessels germany self proclaimed war zone destroyed warning enemy vessels outside war zone destroyed armed avoid united_states enemy passenger attacked regardless war zone successes new offensive came march sank young harry nautical miles east attacked pair ships early april ton british ship perth torpedoed sunk near 1st dutch sailing vessel damaged attack days later east april succeeded year old time boat weeks command sank british ton 10th ton 22nd sunk nautical miles route cargo props sailed galveston texas norfolk virginia load wheat hull sunk near end april admiral newest commander chief german high seas fleet called merchant shipping offensive ordered boats sea return boats port remain sink ships months grand_fleet ambush attempts mid completed plans draw german high seas fleet sortie raid british fleet nests submarines fields support operation flanders boats set midnight form line nautical miles east group intercept attack british light forces sortie north join battle unfortunately germans british admiralty intelligence reports departure submarines coupled absence attacks shipping aroused british suspicions delayed departure german high seas fleet sortie failure boats stationed north receive coded message warning british advance caused anticipated ambush complete disappointing failure group sighted forces far away mount attack failure submarine ambush sink british capital ships allowed grand fleet engage numerically inferior high seas fleet battle jutland took place june activities months reported august submarine patrolling mass torpedoed norwegian steamer sending cargo food destined london later august set ambush british fleet drew plans high seas fleet raid original intention german fleet planned depart late day august shell military targets morning group intended attack forces boats forming second line boats stationed morning august british intelligence given warning impending attack ambush causing grand_fleet sortie august hours german fleet sailed faulty intelligence caused initially divert eventually operation boats north sank british light cruisers group played action later august patrolling mass stopped norwegian steamer headed london crewmen boarded ton cargo ship planted explosives sank vessel general cargo ship sunk nearly months sunk replaced late month january replacement sank ships command submarine warfare time called winter royal_navy blockade germany severely limited imports food fuel germany results increase infant mortality deaths attributed starvation war blockade having dire consequences personally approved resumption submarine warfare begin february help force british peace new rules engagement specified ship left afloat new campaign underway replaced commander march command little month sank ship ton dutch motor vessel sunk area april reports casualties assigned april command responsible damaging norwegian cargo ship april august torpedoed sank british destroyer recruit nautical miles recruit commissioned months earlier sank complement succeeded august turn succeeded december conversion sister boats converted submarines conversion involved removing bow section containing pair torpedo tubes boat replacing new bow containing capable carrying mines process boats lengthened feet displacement increased long tons surface long tons surface exactly conversion performed reported dockyard november january lack reported successes span makes possibility conversion accomplished similar march command responsible sinking ton steamer near month later april fishing boarded sunk final ship sunk april british forces attempted block canal bottle vessels flanders flotilla raid british succeeded sinking obsolete cruisers canal british admiral planned raid believed ships long period time following day germans removed piers newest commander sortie raid sinking departed final time patrol british submarine spotted surface near commanding officer initially believed british submarine submerged caution proximity identifying submarine german boat attack launched torpedoes distance yards hit bow failed detonate second hit conning tower exploded sinking position minutes minutes surfaced near gone rescued von der water survivor von der imprisoned british prisoner war camp died march british divers dispatched site demise week later find plating pipes concluded torpedo hit ships sunk damaged
SM UB-16