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- Yi Shen (China): 350-ton gunboat
- Yung An (China): 90-ton river gunboat
- Yung Chi (China): 860-ton gunboat, became Hai Hsing (Japan)
- Yung Chien (China): 860-ton gunboat, became Asuka (Japan)
- Yung Feng (China): 780-ton gunboat, became Chung Shan
- Yung Hsiang (China): 780-ton gunboat
- Yung Shen (China): 300-ton gunboat
- Yung Sui (China): 650-ton river gunboat
Read more about this topic: List Of World War II Ships Of Less Than 1000 Tons