Jakar iska ta mota muhimmiyar na'urar kariya ce a cikin kariyar kariya ta mota, kuma jakar iska ta co-direba ta zama ma'auni na motar. Lokacin da jakar iska ta co-pilot ke aiki, jakar iskar tana hura ta cikin injin inflator, kuma ana tura jakar iskar bayan hauhawar farashin kaya don cimma manufar kare wanda ke ciki. Sabon matsayi na haɗin gwiwar abin hawa na makamashi na yau zai tsara babban nuni wanda ke gudana ta dukkan matsayin direba kuma ya fi saman saman kayan aikin, wanda ke rinjayar fadada jakar iska.
Siffar da hanyar lanƙwasa jakar iska tana da tasiri mai girma akan tasirin fadadawa, kuma jakar iska ya kamata ya kasance kusa da kayan aiki da allon nuni don cimma sakamako mafi kyau na kariya. A lokaci guda, hanyar nadawa na jakar iska yana da mahimmanci musamman. A halin yanzu, jakar iska ta co-pilot tana da hanyoyi guda biyu na nadawa: daya shine nadawa extrusion na inji, wato matse jakar iska a cikin harsashi ta hanyar sarrafa hannun injina; Ɗayan shine nadawa kayan aikin hannu, wanda aka naɗe shi da hannu tare da mai raba.
Siffar nadawa extrusion inji yana da ƙayyadaddun ƙayyadaddun ƙayyadaddun, yana da wuya a sami manyan canje-canje, kuma jakar iska ta haɓaka da sauri kuma tasirin tasirin yana da girma, wanda ba zai iya biyan duk buƙatun gwajin ba. Nadawa kayan aiki na hannu zai iya daidaita saurin fadada jakar iska kuma tasirin yana da ƙananan, babban fasalin shine cewa za'a iya daidaita halin jakar iska don saduwa da buƙatun karo na nau'i daban-daban.
