Large Javanese Junks in Nusantaria

From Empire of the Winds: The Global Role of Asia’s Great Archipelago, by Philip Bowring (I.B. Tauris, 2018), Kindle p. 214: The commercial merit of large Javanese junks was immediately apparent to the Portuguese. Assuming stable ratios of length to beam to depth, a 30-metre junk would have had a tonnage of about 150 tonnes, while one with 1,000 tonnes would have a length of about 55 metres. For their first commercial voyages after seizing Melaka, the Portuguese collaborated with an important Hindu businessman who had two junks of around 200 tons burthen, each with a crew of about 80. Another witness was the Portuguese adventurer and writer Duarte Barbosa, who was based in Kerala, spoke the local language, Malayalam, and sailed much of the Indian Ocean. He wrote around 1518: There also come hither many ships from Java, which have four masts, very different from ours and of very thick wood. When these ships become old they fit them with new planks and in this manner they carry three or…