a cikin Age na Discovery, Sojojin Portuguese sun fara balaguro mai ban tsoro zuwa bincika yankunan da ba a san su ba da kafa hanyoyin kasuwanci. Don tabbatar da amincinsu akan jiragen ruwa da ayari, sun yi amfani da a makami na musamman wanda ake kira Carracks Black Sword, wanda kuma aka sani da Takobin Kagu.
An ƙirƙira wannan takobi mai ban mamaki a Portugal a cikin ƙarni na 15 kuma an tsara shi musamman don sojoji da ma'aikatan jirgin ruwa a cikin bincikensu na duniya. Ya ƙunshi wani keɓaɓɓen gadi mai zoben kariya guda biyu, wanda aka ƙera don kare yatsun mai amfani yayin da yake aiki a matsayin hanyar damke ruwan abokin gaba.
Ɗaya daga cikin fitattun halayen Carracks Black Sword shine launin baƙar fata. Sojojin Portuguese sun fentin takuba baƙar fata don hana hasken haske, wanda zai iya cin amanar kasancewarsu a kan jiragen ruwa. Bugu da ƙari, fentin baƙar fata ya taimaka wajen rage lalata da ruwan gishiri ke haifarwa, yana tabbatar da daɗewar aikin takobi.
Bayan fasalulluka masu amfani, takobin yana da suna na musamman a tsakanin sojojin Portuguese. Sun kira shi da "Colhona", kalmar da ke fassara a zahiri zuwa "manyan ƙwallaye" a cikin Portuguese. Wannan suna ana danganta shi da faranti na zagaye na takobi masu kama da nau'in ƙwaya, haɗe da siffar sa.
Ba a san ainihin asalin takobin ba, amma ana samun irin takuba masu halaye iri ɗaya a tsakanin sojojin Castilian da sauran yankuna na tsibirin Iberian. Ya zama sananne da takobin Iberian na ƙarshen karni na 15.
Takobin Tsaron Portuguese, wani sanannen samfuri a tsakanin sojojin Portuguese a wannan lokacin, ya nuna madaidaicin wuka tare da sashin giciye na lu'u-lu'u, pommel discoidal, da masu gadi irin na volute. Asalin wannan takobi kuma yana da shakku, amma ana iya gani a cikin zane-zane daga ƙarshen karni na 14.
Shahararren mai zanen Fotigal Nuno Gonçalves ya haɗa da Takobin Tsaron Portuguese a cikin ayyukansa, kamar Saint Vincent Panels da Tapestries na Pastrana, yana ƙara haɓaka mahimmancin al'adu.
Yayin da Takobin Tsaron Portuguese da Carracks Black Sword suna raba kamanceceniya a cikin ƙira, yana da mahimmanci kada a rikitar da su. Carracks Black Sword, tare da fasalinsa na colhona, wani sigar Portuguese ne na musamman da aka samo daga takobin tsaro na Portuguese. Ƙarin faranti ko fayafai a ƙarshen kowane quillon ya ba wa maƙiyin takobi ƙarin gefen yaƙi.
An fi amfani da takubban colhona a biranen kasuwanci na Portuguese a Afirka a cikin ƙarni na 16 kuma sun zama alamomin girmamawa da sarakunan yankin suka rungumi. Wannan faɗaɗa ta Portuguese a Afirka ya haifar da yaduwar takobi a tsakanin al'ummar Afirka, waɗanda suka dauke shi a matsayin alamar matsayi.
A cikin kayayyaki na zamani, ana kwatanta Carracks Black Sword a matsayin "espada preta de bordo," yana jaddada baƙar fata da kuma nufin yin amfani da shi don yaki da hannu a kan jiragen ruwa da sandunan da ke bakin tekun Afirka.
A ƙarshe, Carracks Black Sword, wanda aka sani da Crab Sword ko Colhona, ya kasance a makami mai ban mamaki da aka ƙera don biyan buƙatu na musamman na sojojin Portuguese a lokacin Age na Discovery. Baƙar fata, na musamman gadi, da ƙarin ruwan wukake sun sanya shi zama makami mai ƙarfi, yana baiwa sojoji damar gujewa ganowa da kuma yaƙi da lalata. Yayin da binciken Fotigal ya faɗaɗa cikin Afirka, takobin kuma ya sami karɓuwa a tsakanin al'ummar Afirka a matsayin alamar matsayi mai daraja. Tarihin takobi da muhimmancinsa sun zama shaida ga hazaka da hazaka na sojojin Portugal a wannan zamanin na bincike da ganowa.
