
jarmman antarvaahini yuu-21 (1936)

naasi germmaniyude "kreegsmarine" enna kappalinte oru tharam aii. aii. bii. yuu-bottayirunnu jarmman antarvaahini "yuu-21". 1936 march 4 nuu keelinte germania verft 551 enna yard nambaraayi avarude keel sthaapichu. 1936 august 3 nuu avar kammeeshan cheyyappettu. randaam lokamahaayudhasamayathu, avar shatru kappal gathaagathathinethire pravartthanangal nadatthi.
"yuu-21" ezhu yuddha patrollinginu pooyi, anchu kappalukalum oru sahaaya yudhakkappalum mungukayum oru yudhakkappalinu kedupaadukal varuthukayum cheythu.
design.
jarmman tharam aii. aii. bii antharvaahinikal yadhaartha tharam aii. aii. esinte vipuleekritha pathippukalaanu. "yuu-21" nuu uparithalathilum vellathinadiyilum oru sthaanachalanamundaayirunnu. ennirunnaalum, audyogikamaayi, staanderd tanej aayirunnu. yuu-bottinu motham neelam, mardhamullah puramthodinte neelam, oru beam, uyaram, oru draaft ennivayundaayirunnu. rund emm. dablyu. emm. aarr. ezz 127ezz phoor-strock, crusinginaayi aarr silindar deesal enchinukal, rund seamens-scuckert pii. jii. vii. vii <aii. dii. 1> eratta-acting electric motorukal ennivayaal pravartthikkunna antarvaahini vellathinadiyilaakumbol upayogathinaayi motham uthppaadippikkunnu. avalkk rund shaafttukalum rund propellerukalum undaayirunnu. aazhathil pravartthikkaan bottinu kazhiyumaayirunnu.
antharvaahinikk paramavadhi uparithala vegathayum paramavadhi vellathinadiyilulla vegathayum undaayirunnu. mungikkidakkumbol boat pravarthippikkaan kazhiyum; uparithalathil varumbol avalkk yaatra cheyyaan kazhiyum. "yuu-21" ll villil moonnu torpido tubeukal, anchu torpidokal allengil panthrand tharam torpido khanikal, oru vimana virudha thokku enniva gadippichirunnu. bottinu irupathiyanchu komblimentukalundaayinu.
pravartthana charithram.
onnum randum moonnum patrolling.
"yuu-21-nte aadya patrolling thaarathamyena asaadhaaranamaayirunnu.
avarude randaamathe yaathrayil, britiish antarvaahini bottine akramikkukayum 1939 septambar 17 nuu berwick-oonn-tweedinu (engleesh/scotish athirthiyil) vadakkukizhakkaayi aarr torpidokal avarkk nere prayogikkukayum cheythu. randaam lokamahaayudhathil royal nevi vikshepicha aadyathe antarvaahini aayudhangalaayirunnu iva. avarellam nashtappettu.
avalude moonnaamathe patrollingil, yuu-boat mattoru britiish antarvaahini madhya vadakkan kadalil avalkk nere torpidokal prayogichu. phalam anishchithathvathilaayi.
naalaamatheyum anchaamatheyum patrolling.
1939 desember 1 nuu buchan nessinu (peterheadinu sameepam) thekkukizhakkayi finnish rajisttar cheytha "merkkettar" mukkiyathodeyaanu torpido upayogichulla bottinte aadya vijayam. avar oru khani upayogichu britiish cruiserinum kedupaadukal varuthi.
1939 desember 21nuu "maars", (iruvarum sweedenil ninnullavar) "kaal hengel" enniva ore divasam avar anchaam thavana mukki. britiish boom prathirodha kappaline avar veendum oru khaniyode mukki.
aaraamathe patrolling.
aaram nambar patrollingil 1940 januvari 31 nuu moreh firthinu kizhakkayi danish "vidar" mungunnath avar kandu.
ezhaamathe patrolling.
1940 februvari 26nuu avar britiish "rajakeeya ambeythukaarane" oru khani upayogichu mukki, ennaal march 27nuu oru naavigeshanal pishakine thudarnnu ooldknuppen dveepil ninnu avar thennimaariyappol ellaam moshamaayi. boat norwayile mandalathilekku valichizhachu avide thadavilaakki. attakuttappanikalkkayi avale kristhyaanisandilekku kondupoyi nordic raajyathinte jarmman adhiniveshathinu sesham epril 9 nuu vittayachu.
vidhi.
joolaiyil avale keelile 21-aamath yuu-boat bottilekk oru pariseelana bottayi maatti, yudhathinte backie kaalam avarodoppam thaamasichu. "1945 februvariyil yuu-21 raddaki.

