Kunezinhlobo ezimbili zohlaka lomshini: imodeli eshiselwe kanye nemodeli ehlanganisiwe.Owokuqala ungowosayizi omncane nomaphakathi, kanti owesibili ngowosayizi omkhulu.Uhlobo oluhlanganisiwe lwamukela i-arc fillet enkulu kanye nendlela yokushisela ukucindezeleka okuphansi, kunciphisa kakhulu ukucindezeleka okugxilile okuqinisekisa amandla alinganayo e-rack kuzo zonke izinkomba, ukumelana nomthelela omkhulu, ngisho namandla, izinga lokuhluleka eliphansi.Okuhlanganisiwe kusebenzisa i-modularization ethuthukisiwe kanye nedizayini yesakhiwo sozimele esingashiselwe wamandla aphezulu wokukhathala nokuthembeka okuphezulu.Khonamanjalo ukwakhiwa komhlangano womshini kwenza ukuthutha, nokufakwa kube lula, ikakhulukazi kulungele ukufakwa ezindaweni eziwumngcingo nezincane njengokumbiwa phansi kanye nezimayini eziphakeme.