Chovala choyang'ana cha Flanged ndi valavu yamtundu wa swing (valvu yosabwerera) yokhala ndi kulumikizana kozungulira. Amagwiritsidwa ntchito kulola madzi kuti adutse njira imodzi yokha, ndipo chimbalecho chimasuntha kuchoka pampando kuti chilole kuyenda kutsogolo, kapena kugwedezeka pampando kuti atseke kubwerera kumbuyo.