Qhov teeb meem uas feem ntau los ntawm lub siab nrog Boeing 747 yog qhov nws yuav tsis tuaj yeem tswj hwm qib davhlau yog tias nws mus rau pem hauv ntej. Thaum Boeing 747 tig rov los, cov cav yuav 'tuag tawm' vim tsis muaj roj hla cov kab.
Puas tau ya dav hlau rov qab?
Yuav kom ya rov qab, koj xav tau tis tsim uas tseem tuaj yeem nqa nqa txawm tias tig rov qab. … Tab sis tis ntawm cov dav hlau aerobatic yog nkhaus ntawm ob sab qaum thiab sab. Nrog rau qhov kev tsim symmetrical, lub dav hlau tuaj yeem ya ib txwm los yog thim rov qab. Tus kws tsav dav hlau tuaj yeem tig los ntawm ib qho mus rau lwm qhov los ntawm kev hloov lub kaum sab xis ntawm kev tawm tsam.
737 puas tuaj yeem ya rov qab?
A 737-700 yuav ya rov qab, tab sis nws yuav poob qhov siab zoo nkauj nrawm, thiab tshwj tsis yog koj tso lub iav lub dav hlau yuav nce nrawm nrawm.
Yuav ua li cas mus ua lag luam dav hlau invert?
tsis muaj leej twg ua. Qee lub dav hlau tuaj yeem ua qhov hu ua 'powerback', tab sis feem ntau, cov dav hlau tsis muaj peev xwm ua tau zoo. Feem ntau cov dav hlau tuaj yeem tsheb tavxij rov qab los ntawm kev siv thim rov qab. Qhov no suav nrog kev taw qhia lub zog uas tsim los ntawm lub dav hlau lub dav hlau tshuab rau pem hauv ntej, tsis yog rov qab.
Puas muaj peev xwm yob ib 747?
Boeing Chief Test Pilot John Cashman tau hais tias ua ntej nws tau tsav lub dav hlau dav hlau Boeing 777 thaum Lub Rau Hli 12, 1994, nws cov lus qhia zaum kawg los ntawm Boeing Thawj Tswj Hwm Phil Condit.yog "Tsis muaj rolls." Yog, nws yog ua tau. Peb tau ntsib qhov muaj peev xwm siv lub simulator ntawm 747/400.
