Ukusebenza kwendawo yasendaweni nge-vertical approach (LPV) kuyindlela yenqubo yesimanje yezindiza zezindiza esebenzisa uhlelo olubanzi lwe-augmentation area (WAAS) namakhono afanele kakhulu e-GPS ukuze athole isikhundla sezindiza. I-LPV inikeza isikhundla esiphezulu sezindiza esitholakalayo namuhla. Indlela ye-LPV ingathola umshayeli phansi kuze kube ngu-200-foot noma 250-altitude yokuphakama kwesinqumo. Inzuzo yukuthi lokhu kwenza ukuba izindiza zikwazi ukuhamba emigwaqweni ekubonakalayo okuphansi kakhulu.
Ngaphandle kwamakhono we-WAAS (okungukuthi, ngaphandle kokukwazi ukuhamba ngendlela ye-LPV) izimo ezimbi kakhulu zokubonakala esikhumulweni sezindiza zingase ziphoqe umshayeli ukuba aqhubekele esikhungweni sezindiza esinqunyiwe nesingaphansi.
Ngokuvamile, i-LPV iyasondela, kanye nezindiza ezinamandla we-WAAS, vula izinketho ezintsha (ezingatholakali ngaphambili) zokushayela. Ngezindiza ezihlomele kahle, abagibeli bezindiza bayakwazi ukugcina isikhathi, nemali, ngokusebenzisa i-WAAS ngoba iyisiza esivamile kakhulu sokuhamba ngezinyawo . Ngaphezu kwalokho, abagibeli bezindiza abanezibonelelo ze-LPV bayakwazi ukuqedela ukufika ezindaweni zezindiza ezingenakufika ngaphambili, njengezindiza ezikude. Futhi bayakwazi ukwenza izindlela ezingaxhaswa kalula nge-navigation navigation, esimweni sezulu esibi nakakhulu kunalokho abajwayele. Esikhundleni sokuthembela ekuhambeni kwemisakazo, abagibeli bezindiza bangancika esimisweni sokuhamba nge-satellites esinqunyiwe kakhulu nesigxilile. Kungukucaca kwalolu hlobo lokuhamba olwenza abagibeli bezindiza behlele ezindaweni ezingezansi (ngaphandle kokubhekisela okuvamile okubonwayo) noma ngenkathi besaba emafwini.
Indlela i-LPV isebenza ngayo
Indlela ye-LPV ifana ne-LNAV / VNAV indlela, kodwa inembile kakhulu futhi ingavumela ukwehla kuya ezincane ezinamamitha angu-200 kuya ku-250. Amandla we-WAAS adingekayo ekuqondisweni okuqondile okuqondile futhi okuqondile, ebeka eceleni indlela ecacile. Ngakolunye uhlangothi, indlela ye-LNAV / VNAV ayiyona eqondile.
Eqinisweni, indlela ye-LPV isifana nesistimu yokuthutha i-instrument (i-ILS) kodwa inembile kakhulu ngoba isebenzisa ubuchwepheshe be-satellite yesimanje. Futhi, akukho imishini ephansi edingekayo okusho ukuthi kunesikhathi esincane sokuphumula kanye nokuphuma. Lokhu kusho nokuthi izindleko zingaphansi ngoba akukho mishini futhi akukho ukugcinwa okuvamile okuhilelekile.
Indlela i-WAAS isebenza ngayo
I-WAAS ithatha iphutha ngokuphuma kwezimpawu ze-GPS ezijwayelekile ngokuhlaziya idatha ye-GPS esiteshini samakhono bese ithumela ulwazi olulungisiwe lwedatha kumamukeli we-GPS. Abamukelayo, nabo, bakwazi ukususa noma yiziphi amaphutha we-GPS. Le nqubo yenza imininingwane ye-GPS ibe yibufakazi obuningi futhi ivumela umphumela ocacile kakhulu.
Kungani i-WAAS ingcono
Ukuchithwa kwe-GPS kuthuthukisiwe kusuka kumamitha angu-100 ngamasevisi ejwayelekile we-GPS kumamitha angaba ngu-7 no-WAAS. Lokhu kushiya neze igumbi lesiphambeko futhi linikeza ithuluzi eliqondile kakhulu lokuhamba ukuze kube yimanje.
Izinzuzo ze-WAAS ohlelweni lukazwelonke lwe-airspace lonke lukhulu. Lezi zinzuzo zibandakanya umthamo okhulayo, ukwazi ukusebenzisa imigwaqo ngendlela ephumelelayo, ukunciphisa izindleko zokusetshenziswa (kokubili ngaphakathi nangaphansi), futhi, kodwa ekugcineni, ukwandisa ukufinyelela kwamakhono kuzo zonke izinhlobo zezindiza.
Obeye aziwe njengo:
Indlela ye-LPV, indlela ye-WAAS, i-Localizer eneziqondiso eziqondile