Mphepo yamphepo, yosasinthika nthawi zonse pa eyapoti yonse, imapereka chidziwitso chofunikira kwa oyendetsa ndege. Ndikofunikira kuti ndege ipite kumphepo ndikupewa kutsetsereka ndi mchira. Kuwonjezera apo, ndege zonse zimakhala ndi chigawo chodziwika bwino cha crosswind-mphepo ya mphepo imene ndege imakhala yoopsa pamtunda wina. Momwemo, ndizofunikira kuti oyendetsa ndege apange njira yofulumira komanso yosavuta yodziwira kuti liwiro la mphepo ndi langizo lisanayambe-ngati mphepo.
Mphepo zambiri zimapangidwa kuti ziziyenda motsutsana ndi mphepo pamene mphepo yamkuntho imaposa katatu. Pawindo la mphepo la mapiko 15 ndi lalikulu, mphepo idzawongoleratu ndikuwonetsa njira yosiyana yomwe mphepo ikuwomba. (Ngati mapeto a windsock akulozera kumpoto, mphepo ikubwera kuchokera kumwera.) Mwadzidzidzi, mungaganize kuti ngati mphepo yayenda kutalika, mphepo ingakhale pafupifupi mawanga 7.
Ku ndege zina zosayendetsa ndege ndi ndege zam'mlengalenga, windsock ndilo chokhacho chimene chimapanga mphepo. Mabwalo ambiri a ndege amakhalanso ndi nyengo yoyang'ana nyengo (AWOS) kapena njira yodzidziwitsa okha (ATIS), yomwe ingakhale yopereka mphepo yachangu ndi deta yolongosola kuchokera ku nthenda yam'mimba kapena sensor yomwe ili pamunda. Kudziwa malo a anemometer kapena masensa ena pamunda, mogwirizana ndi deta ya windsock, idzakuthandizani kuzindikira njira ya mphepo ndi liwiro pa malo osiyanasiyana pamunda.
Chitsime: FAA AC-150 / 5345-27D