Nka rotor ya feri ikozwe mubyuma, mubisanzwe iragora kandi iyo ihuye namabuye yumunyu, ingese (okiside) ikunda kwihuta.Ibi bigusigiye na rotor mbi cyane.
Mubisanzwe, ibigo byatangiye kureba uburyo bwo kugabanya ingese za rotor.Inzira imwe kwari ukubona disiki ya feri kubabara kugirango wirinde ingese.
Na none kubikorwa byisumbuyeho, nyamuneka uzakunda uburyo bwa rotorisiyo kandi yashizwemo.