Mawonekedwe:
1. Kapangidwe kake ndi kosavuta, kosavuta kugwiritsa ntchito, kudalirika kwa ntchito, kugwiritsa ntchito kumakhala kosavuta.
2. J23 mndandanda wamtundu wotseka wamtundu umayitanitsa makina amphamvu a fuselage a mawonekedwe a ndege olunjika, olinganizidwa bwino kuti azikhala ndi dint, mawonekedwe osasintha, okhazikika komanso amphamvu.
3. Kutalika kotseka kwambiri, nyamulani danga la nkhungu lalikulu, chidutswa choterera, chidutswa cha Zakudyazi zisanu ndi chimodzi, kulondola kwake ndikwambiri, kukhazikika kwabwino.
4. Kunja thandizo mtundu makamaka chachikulu makina kuchita, kukweza chida makina kukhazikitsa bata, chitetezo, mkati malo mtundu, mafuta msewu, magetsi dera, kukongola woyera ndi ukonde, ndi chitetezo, odalirika mtundu kwambiri,
5. The dzanja ntchito batani lophimba machesi kuthamanga makina dziko chitetezo muyezo.