if not outright racist logic [ie trying to paint the credibility of all Chinese sources under the same brush]. On the other hand, the one time you were asked on sourcing, you've ignored the request.
- What direct contemporary testimony do we have that specifically states the 5,000 liao ships on the Chinese tombs were warships.
- What direct contemporary Ming records that specifically describe battleships of large (1000 tons burden) sizes? Treasure ships are not specifically identified as warships?
- What Ming record describes Louchan (Tower) ships with crews of 3,000 to 4,000 size being used during the Ming dynasty (and not earlier).
You and Heavenlykaghan have repeatedly lied when you have provided sources for those claims, but you haven't.
Since we know that the larger ships of Zheng He did not exist in later Ming times (Needham acknowledges this in Science and Civilization Volume 4 part 3), we cannot assume that because Tower ships existed in earlier times they existed in Ming times.
The question is to the size of Chinese Ming dynasty warships. We know, and Needham acknowledges this, that ships of the later Ming were smaller. The question is if the warships of the earlier Ming were any bigger. That requires evidence you have not provided.