Type II sitima zapamadzi. Kubadwa kwa U-Bootwaffe
Sitima zapamadzi zamtundu wa II D - ziwiri kutsogolo - ndi II B - imodzi kumbuyo. Zizindikiro zimakopa chidwi. Kuchokera kumanja kupita kumanzere: U-121, U-120 ndi U-10, za 21st (zophunzitsa) zoyendetsa sitima zapamadzi.
Pangano la Versailles, lomwe linathetsa Nkhondo Yadziko I mu 1919, linaletsa Germany, makamaka, kupanga ndi kumanga zombo zapamadzi. Komabe, zaka zitatu pambuyo pake, pofuna kusunga ndi kukulitsa luso lawo lomanga, zomera za Krupp ndi malo osungiramo zombo za Vulcan ku Hamburg zinakhazikitsa bungwe la Ingenieurskantoor voor Scheepsbouw (IvS) ku The Hague ku Netherlands, lomwe limapanga ntchito za sitima zapamadzi za mayiko akunja ndi amayang'anira zomanga zawo. Ofesiyo inalipidwa mwachinsinsi ndi Gulu Lankhondo Lapamadzi la ku Germany, ndipo kusoŵeka kwa anthu odziŵa bwino ntchito m’maiko ogulawo kunatumikira monga chivundikiro cha maphunziro a sitima zapamadzi za ku Germany.
chibadwa
Pakati pa malamulo akunja omwe adalandiridwa ndi IVS, chifukwa cha malo ochezera amphamvu aku Germany, pali malamulo awiri aku Finnish:
- kuyambira 1927, atatu Vetehinen 500-tani m'madzi oyendetsa pansi pa madzi omangidwa motsogozedwa ndi Germany pa Crichton-Vulcan shipyard ku Turku, Finland (anamaliza 1930-1931);
- kuchokera 1928 kwa 99-tani minelayer, poyamba ankafuna Lake Ladoga, anamanga ku Helsinki pamaso 1930, dzina lake Saukko.
Tsiku lomaliza lomaliza dongosololi linachedwa chifukwa chakuti oyendetsa sitima za ku Finnish analibe luso lomanga zombo zapamadzi, panalibe antchito aluso okwanira, komanso, mavutowa adayambitsidwa ndi mavuto azachuma padziko lonse lapansi kumapeto kwa 20s ndi 30s ndi matenda okhudzana ndi izo. Zinthu zinayenda bwino chifukwa cha kuloŵerera kwa mainjiniya a ku Germany (omwenso ochokera ku IVS) ndi akatswiri odziwa ntchito yomanga zombo amene anamaliza kumangako.
Kuyambira mu April 1924, akatswiri a IVS akhala akugwira ntchito yokonza sitima yapamadzi yolemera matani 245 yopita ku Estonia. Finland idachitanso chidwi ndi iwo, koma idaganiza zoyamba kuyitanitsa matani 500. Kumapeto kwa 1929, gulu lankhondo la ku Germany linachita chidwi ndi ntchito ya ngalawa yaing'ono yokhala ndi nthawi yochepa yomanga, yomwe imatha kunyamula ma torpedoes ndi migodi yomwe ikugwira ntchito pamphepete mwa nyanja ya Great Britain.
Vesikko - Kuyesera kwa Germany pansi pa chivundikiro cha Finnish
Patatha chaka chimodzi, Reichsmarine adaganiza zotumiza kukhazikitsidwa kwa unsembe wa prototype wotumizira kunja. Cholinga cha izi chinali kuti athe okonza German ndi omanga zombo kupeza zambiri zamtengo wapatali pofuna kupewa "chibwana" zolakwa m'tsogolo pomanga angapo osachepera 6 zombo zosoweka Germany, pamene kukwaniritsa nthawi yomanga zosaposa. 8 masabata.
pa bwalo lililonse la ngalawa (ndi ntchito yozungulira koloko). Mayesero apanyanja otsatirawa analinso kulola kugwiritsa ntchito asitikali "akale" oyendetsa sitima zapamadzi m'deralo kuti aphunzitse akuluakulu achichepere. Kuyikako kunayenera kumangidwa mu nthawi yaifupi kwambiri, popeza cholinga chachiwiri chinali kuyesa mayesero ndi torpedo yatsopano - mtundu wa G - woyendetsedwa ndi magetsi, 53,3 cm, 7 mamita yaitali - G 7e.
