《明史·志·卷六十八》
以一千辆计算，方形排列可达到十六里，粮草、器械物资都随时取用以供需求。
以千辆计，四方可十六里，刍粮、器械辎重咸取给焉。
Using 1,000 chariots as an example, a square formation could extend to a length of 16 li. Provisions, weapons, and materiél could be accessed as needed at all times.