Ubwoko bwa G bwashyizwemo umuyoboro utunganijwe utunganijwe kuva mubugari runaka mu cyuma cyuma no mu burebure bwa spiral, hanyuma ugashyiramo lente kumuyoboro wibyuma nibikoresho.Muburyo bwo guhinduranya, nkimbaraga zabanje gukomera kurwego runaka bityo umurongo uzaba ushikamye mumashanyarazi, kugirango harebwe niba hari aho uhurira hagati yicyuma nicyuma.Kugirango wirinde isoko yimvura igwa kumatara yoroheje, impande zombi zicyuma zigomba gusudira kumuyoboro wibyuma.Kugirango ushireho byoroshye, hagomba kubaho itandukaniro hagati yumukandara wibyuma na spiral groove.Niba gukuraho ari bito cyane gahunda yo gushiraho bizagorana kugenda neza.Byongeye kandi, umukandara wibyuma bizunguruka hazajya habaho urugero runaka rwo kwisubiramo, ibyo bigatuma bidashobora kuba byiza cyane hagati yumukandara wibyuma no munsi ya spiral groove hepfo.Amabati yometseho arashobora gukorwa kubikoresho rusange, kandi bigura make.Amasosiyete ya Mcelroy muri Reta zunzubumwe zamerika isosiyete nakoresheje ibikoresho byiterambere bigezweho, tekinoroji yo gushira mu majwi iratera imbere, kuva ihamye, yashyizwemo kandi ihamye, yakuyemo ingufu zitari munsi ya 70 n, ubushyuhe bwemewe bushobora kugera kuri 400℃,ifite ubushobozi bukomeye bwo guhangana nubushyuhe hamwe nubushyuhe bwumuriro, bikoreshwa cyane muri peteroli ya peteroli.
