Pedzisa mutsara unotevera: Mhuri yavatengesi yeSong yakagadzira ngarava dzokutanga dzokuJunks dzakavakirwa pazvikepe zvokuSoutheast Asia. Munguva iyi vakagamuchirawo ngarava dzechiMalay. Ngarava dzevaSung, dzaitengeserana uye dzaishandiswa muchiuto, dzakava musimboti wengarava dzevaYuan. Zvikurukuru kupinda kweMongol muJapan (1274<unk>84), pamwe chete ne
Kupinda kwevaMongol muJava (zvose zvakundikana), kwainyanya kuvimba nekugona kwegungwa kweSong kuchangobva kuwanikwa. Worcester anofungidzira kuti Yuan junks yakanga iri 11 m (36 ft) mu beam uye inopfuura 30 m (100 ft) yakareba. Kazhinji kazhinji dzakanga dzisina chigadziko, mudonzvo, kana kuti mudonzvo. Dzakanga dzine midzi yemapuranga, uye chivharo chisingapindi mvura kuti dzisimbise chimiro, izvo zvakawedzera uremu hukuru. Kucherazve kwakaratidza kuti rudzi urwu rwemudziyo rwakanga rwakakurumbira muzana remakore rechi13. Nokushandisa nhamba yevarwi nengarava pakurwisa kwose, zvinogona kugumiswa kuti ngarava imwe neimwe ingatakura varume 20 kusvika ku70.