Inkqubo yesilingi yegridi yohlulwe yaba yi-grille main rib, ubambo oluncedisayo kunye nenkqubo ye-keel engundoqo ephezulu. Ukufana kweembambo eziphambili kunye ne-rib encedisayo yegrille ibhekisela kwii-slats zentsimbi. Inkqubo yesilingi yebhanti yisilingi evulekileyo yokuhombisa eyenziwe ngokudityaniswa kwembambo ephambili kunye nomncedisi oncedisayo wegrille ngendlela ethe nkqo nethe tye.
