Although based on the MiG-19, the new design, designated Qiangjiji-5 (fifth attack aircraft design), had a longer fuselage, area ruled to reduce transonic drag and accommodate a 4 m (13-ft) long internal weapons bay.
Walaupun berdasarkan MiG-19, desain baru, ditunjuk Qiangjiji-5 (lima desain pesawat penyerang), memiliki pesawat lagi, daerah memerintah untuk mengurangi transonik menarik dan menampung m 4 (13-ft) panjang internal senjata teluk.