Video: Dab tsi yog Isa hauv Foreflight?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus txheej txheem thoob ntiaj teb huab cua ( ISA ) yog ib qho qauv ntawm qhov kub thiab txias ntawm qhov siab. Nws tau tsim los muab cov lus qhia hauv paus, thiab siv los ua lub hauv paus rau kev suav ua haujlwm. Txhua tus kws tsav dav hlau paub txog lub tswv yim tias thaum kub nce, kev ua haujlwm ntawm lub dav hlau poob qis.
Yog li ntawd, ISA deviation txhais li cas?
Cov kub thiab siab yog ISA tus nqi ntawm txhais tau tias hiav txwv theem. Cov no hloov nrog qhov siab. Dewpoint yog tsis tau txhais hauv ISA , as ISA ua tsis muaj plua plav, noo noo thiab dej vapor. ISA -30 cua txhais tau tias kub sib txawv los ntawm ISA kub.
Qhov thib ob, ISA cov xwm txheej yog dab tsi? Lub International Standard Atmosphere ( ISA ) yog tus qauv atmospheric zoo li cas ntawm qhov siab, qhov kub thiab txias, qhov ntom ntom, thiab viscosity ntawm lub ntiaj teb huab cua hloov mus rau ntau qhov chaw siab lossis qhov siab.
Kuj nug, ISA kub sib txawv yog dab tsi?
ISA tsis hloov raws caij nyoog lossis thaj tsam ntawm kev ya davhlau. Kub deviation , qhov txawv hauv kub los ntawm ISA , tuaj yeem yog qhov zoo lossis tsis zoo. Txuj ISA kub nyob rau hauv lub troposphere yog 23.3 ° F (-4.8 ° C) ntawm Davhlau Level (FL) 100, -12.3 ° F (-24.6 ° C) ntawm FL200, thiab -49.9 ° F (-44.4 ° C) ntawm FL300.
Isa 15 txhais li cas?
Nws yog ib qho kev ntsuas ntawm cov huab cua molecules nyob rau hauv ib chav tsev ntim ntawm huab cua. Cua kub hauv lub ISA yog + 15 oC ntawm Txhais tau tias Hiav txwv theem thiab txo qis ntawm kwv yees li 2oC ib 1000 ko taw nce hauv qhov siab. Huab cua ceev hauv lub ISA txo nrog nce hauv qhov siab.
Pom zoo:
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