According to British scientist, historian and sinologist Joseph Needham, the purported dimensions of the largest of these ships were 135 metres (440 ft) by 55 metres (180 ft), which would make them at least twice as long as the largest European ships at the end of the sixteenth century.
Menurut ilmuwan, sejarawan dan sinologis Inggris Joseph Needham, luas dari kapal terbesarnya diperikirakan berukuran 137 m (450 kaki) kali 55 m (180 kaki), yang akan membuat mereka setidaknya dua kali lipat dari panjang kapal-kapal Eropa terbesar pada akhir abad keenam belas.