I-VMC ne-IMC imigomo yezindiza esetshenziselwa ukuchaza izimo zezulu ngesikhathi sezindiza. I-VMC imele izimo zemvelo ezibonakalayo futhi i-IMC imele izimo zezulu zemishini . Nakuba la magama amabili asetshenziselwa ngokungafani (ngisho, ngokudabukisayo, phakathi kwabachwepheshe bezezimboni) ngokwemigomo ye-VFR ne-IFR, ngokulandelana, i-VMC ayifani ne-VFR, futhi i-IMC ayifani ne-IFR.
Imithetho ye-VFR ne-IFR
Njengabashayeli abaningi bezindiza, kunezigaba ezimbili zemithetho yokuhamba ngezindiza: VFR ne-IFR.
I-VFR imele imithetho yokuhamba yomboni, eyakha iqoqo lezimiso lapho umshayeli osebenza khona indiza ngezimo zezulu ngokuvamile ecacile ngokwanele ukuvumela umshayeli ukuba abone ukuthi indiza iya. Ngokucacile, isimo sezulu kufanele sibe ngcono kunesimo sezulu se- VFR esivumelekile ngokuqondene ne-VMC, izimo zezulu ezibukwayo, njengoba kuchaziwe emithethweni evezwe igunya elifanele kakhulu lokuhamba ngezindiza. Igama elithi IFR lisho imithetho yendiza yendiza. Ngokuvamile, isimo sezulu sisho ukuthi umshayeli wezinyawo ukhetha i-VFR noma IFR
Indlela i-FAA echaza ngayo i-VMC
Ngaphambi kokuba sibhekane nencazelo nokubaluleka kwe-VMC, kufanele sibone ukuthi empeleni kunezinhlobo ezimbili ze-VMC. Ngezinhloso zakho, sizobuka izimo zezulu futhi hhayi umoya ohambelana nokuhluleka kwe injini ngesikhathi sezindiza eziningi. Lesi simo siboniswa nge "V" enkulu futhi encane 'mc': Ama-Vms.
Incazelo ye-VMC, ngokusho kwe- Federal Aviation Administration (FAA) izimo zezulu ezivezwe ngokubonakala, ibanga ukusuka efwini, nokulethwa okulinganayo noma okungcono kunamaminithi acacisiwe. Ngenxa yokuthi i-FAA yigunya likazwelonke mayelana nokulawula zonke izici zokuhamba kwezindiza e-US, imithetho nemithetho yabo iyohlala njalo.
Imigomo i-VMC ne-VFR ivame ukusetshenziselwa ngokungafani, nakuba i-VMC ibhekisela ezimweni zangempela zezulu kanye ne-VFR ibhekisela emithethweni yezindiza ezungeze lezo zimo.
Isibonelo, izimo zezulu ezibonakalayo ezibonakalayo kumele okungenani zilingane nalokho okudingekayo emithethweni yokubuka indiza (VFR). Kodwa-ke, ngenxa yokuthi indiza iqhutshwa ngokomthetho ngaphansi kwezimiso ze-VFR okusho ukuthi umshayeli uzoba ku-VMC yonke indiza, njengoba lesi sihloko sichaza. Ukulahlekelwa okubonwayo okubonwayo (nokungena ngokungenazi IMC) kungenzeka ngisho ngenkathi ugcina i-VFR indiza. Futhi, umshayeli angashayela ezimweni ze-VFR ngenkathi ehamba ngendiza ye-flight IFR, kodwa okuphambene akulona iqiniso: Umshayeli angeke ahambe ezimweni ze-IFR kuhlelo lwezindiza lwe-VFR (okungenani hhayi ngenhloso.)
Indlela i-FAA echaza ngayo i-IMC
Incazelo ye-IMC, ngokusho kwe-FAA, izimo zezulu ezichazwe ngokubonakala, ibanga ukusuka emafwini, nokushayela ngaphansi kweminima echazwe izimo zemvelo ezibonakalayo (VMC) .
Ngokuyinhloko, i-IMC yinoma yisiphi isimo sezulu esingafaneleki njengezimo zezulu ezibukwayo, noma isimo sezulu sibi kakhulu kune-VMC.
Imigomo IMC ne-IFR ivame ukusetshenziselwa ngokungahambisani, nakuba i-IMC ibhekisela ezimweni zangempela zezulu kanye ne-IFR ibhekisela emithethweni yezindiza ezungeze lezo zimo .
Zonke izindiza ku-IMC kumele zenziwe ngumshayeli olinganiswe ngethuluzi futhi ngaphansi kwepulani yendiza ye-IFR.