|Drawing of a Xing Nu Qiang, from 'Wu Bei Zhi (《武備志》)'.|
While Xing Nu Qiang is a siege weapon that is somewhat similar to a siege tower or Lu Gong Che (呂公車), it is not employed in the same manner as an ordinary siege tower. Instead, Xing Nu Qiang is probably used as a fortified mobile command post during siege.
Like Lu Gong Che, it was hardly ever used by the Ming armies.
Mu Nu Qiang