QUESTION: What is the best reference book that has technical info on Chinese Junks?
ANSWER: Please take a look at this website link, it is the most comprehensive reference book available, Practical Junk Rig.


QUESTION: Where can I find plans ?
ANSWER: Some specs: http://www.thejunk.com/specifications.htm
ANSWER: Some specs: http://www.chinaseas.org/chinesejunks/links.html#plans
ANSWER: Some specs: http://www.mm.wa.gov.au/Museum/march/department/oseas.html

The discovery in the 1970s of two early Chinese shipwrecks and their subsequent archaeological excavation has produced new evidence of Chinese shipbuilding technology. The two ships concerned are the Song Dynasty ship found at Hou Zhu, near Quanzhou, Fujian Province, People's Republic of China, dating from about 1277 (Song Shipwreck, 1975i-iv), and the Yuan Dynasty ship found at Shinan, near Mokpo, South Korea, dating from about 1323. Both ships depart significantly with generally accepted theories of ancient Chinese shipbuilding techniques and the finds raise fundamental questions related to the development of Asiatic shipbuilding.

The Quanzhou ship, as it exists today is 24 m long, 9 m wide and 2.2 m deep. The interior of the ship is divided into thirteen compartments by a series of twelve bulkheads. There are two surviving tabernacle mast steps, one for the fore mast and the other for the main mast. It is transom sterned, with a circular groove cut vertically in the transom to take the axial rudder. The groove is constructed so that the round rudder post can slide up an down in the groove, but still holding the rudder in place (because the entrance to the groove is smaller than the diameter of the shaft). The keel is 20 m long, made in three parts. The ship is made up of double planking up to the turn of the bilge where it becomes triple planked. The method of joinery is extremely unusual, being made up of three strakes of lap-joined carvel and then a clinker joint. Additionally there is clear evidence that the ship was built shell first (Green, 1983i).