 Nyora kupfuurira kweiyi ndima - Munguva yepurogiramu yeBuranKubudirira kwokutanga kwe11D77 - motokari inotakura iyo yakazozivikanwa seZenit - KBKhA yakanga yakapiwa basa rokugadzira injini yechipiri, sezvavakaita nokuda kwemotokari dzeProton neSoyuz. Asi nemhaka yezvinetso zveNPO Energomash mukukudziridza RD-123 iyo yaizozivikanwa gare gare seRD-170, vakapa kugadzirwa kweinjini yehydrogen oxygen sustainer kuKBKhA. Iyi purojekiti, yakafanana neSSME, yaiva purojekiti RD-130 mukati meNPO Energomash. Asi apo KBKhA akatora budiriro, akaitumidza kuti RD-0120, zita rinogara riri manyuko ekuvhiringidzika neinjini yenyaya yazvino. Mukutsinhana navo kubata zvakaoma kukura cryogenic propellant injini, Energomash akatora mutoro pokugadzira wechipiri danho injini yacho 11D77, iyo pakupedzisira raizozivikanwa sezvo RD-120. Idi rokuti RD-120 neRD-0120 dzaiva nepfungwa iyi yakabatanidzwa, mukati mepurogiramu imwe cheteyo, uye nekutsinhaniswa kwemabhodhi ekugadzira, hazvibatsiri kudzivisa kuvhiringidzika. 