Re fana ka mokhoa o nepahetseng oa "die casting" bakeng sa li-propeller tsa likepe tsa likepe, tse fanang ka lisebelisoa tse sebetsang hantle, tse tšoarellang tse etselitsoeng ts'ebetso e nepahetseng maemong a leoatle. Re sebelisa mekhoa e tsoetseng pele ea ho akhela, re etsa bonnete ba hore propeller ka 'ngoe e kopana le matla a thata, ho hanyetsa kutu, le maemo a nepahetseng, a bohlokoa bakeng sa ts'ebetso e thellang maemong a boima.

Litharollo tsa rona tse ikhethileng li hlophisitsoe ho latela litlhaloso tsa hau, ho netefatsa ts'ebetso e tšepahalang le e tšoarellang nako e telele bakeng sa likepe tsa likepe. Selekane le rona bakeng sa li-propeller tse entsoeng ka nepo tse ntlafatsang ts'ebetso le ho tšoarella ha likepe tsa hau.