Date visited 22 December 2019
Built in Japan in 1910-13, the gunboat Zhongshan was bombed and sunk in the Yangtze river in 1936. She was raised in 1997, and has been restored. They haven't repaired the bomb damage that sunk her, but apart from that she is in original condition (although when you see the photographs of her as raised, clearly much of the detail you are seeing now is a replica). She is housed under cover in a specially built museum with artifacts recovered from the wreck, and other information about Chinese naval history. You can't get onboard, however the ship is surrounded by multi-level viewing platforms so you can get a pretty good look at it.
There is also a landing craft in the adjacent park - but not a lot of information on it.
Not the easiest museum to get to - it's about an hour and a half drive south of Wuhan, in the middle of nowhere. It is possible to get there by public transport (train, and then a fairly long drive by local bus), but it is probably easier to just get a taxi from the train station.
There is no English-language website I am aware of, so it isn't obvious that it is closed on Tuesdays (until you catch a taxi all the way there on a Tuesday!).