Hello everyone. This is one of my latest ship I have built. Although I am totally new to Planet Minecraft, I've been occasionally building ships. So this is not the first one I built.

For those who don't know that Yamato is, it is the largest battleship ever built in the world and was the flagship of IJN (Imperial Japanese Navy) combined fleet. Her final battle was on her way to defend Okinawa (Operation Ten-go) and she was sunk by the aircrafts of the Task Force 58. Besides her size, her main cannons also had the largest caliber of naval artillery ever fitted to a ship.

My ships always have TNT cart cannons and interior as well as the armor. So one of my goals on this project was to fit the cannon which can shoot many TNT (ended up shooting about 600 TNT for each turret) which uses a lot of TNT minecarts as the propellant. Another goal I had was to build it as beautifully as possible (the appearance)and I think I've done a pretty good job.
(I did use some mods when taking the screenshots.)

If you are interested to see more of my ships, there is a moment in my twitter account so you can check that out. Below is the link to the moment.

https://twitter.com/i/moments/847237190618828802

P.S. I have started distributing the schematic data and world data of Yamato! And here are some things to keep in mind.
(I know it's a bit long please please read!)
1. The TNT cannons only function in Minecraft versions 1.7.10 and older (functionality is only guaranteed in 1.7.10 since I have never tried in any other version but I guess 1.7.2 ~1.7.10 would be ok). If you try to fire the cannon in versions 1.8.X or newer, it will explode and wouldn't fire properly.
TNTキャノンはマイクラのバージョン1.7.10かそれより古いバージョンでのみ動作します。なお、動作が確実に保証されているのはバージョン1.7.10のおいてのみです。不適切なバージョンでキャノンを発砲しようとした場合、暴発するのでご注意下さい。

2.The interior is confusing as a maze. But please enjoy adventuring in the ship.
内装はかなり複雑ですが、艦内探検もこの作品の醍醐味ですのでどうか楽しんでください！

3. The TNT cannon can be controlled by putting items into the hopper at the controlling room or in the bridge. When firing, you must first select the turret you want to fire by turing the lever on at the controlling room which is located underneath the bridge. If you go down the ladder in the bridge to the bottom, you can get there.
キャノンは艦橋及び中央制御室にあるホッパーにアイテムを入れることで発射可能です。中央制御室にある発射したい主砲のレバーをオンにした上でアイテムをホッパーに入れないと発射されません。中央制御室は艦橋直下にあり、艦橋にあるはしごを一番下まで降りることで到達できます。

4. It depends on the spec of the computer you are using but try to put no more than 45 item when firing only one turret, and when firing more than one turret at once (which is possible), put no more than 20 items into the hopper. Otherwise the game will crash.
パソコンのスペックにもよりますが、一基のみの主砲発射の際は45個以上のアイテムは投入されませんようお願いします。複数の主砲を同時に発射する場合は20個以上のアイテムの投入は避けたほうが良いと思われます。制限以上のアイテムを投入するとゲームがクラッシュしますのでご注意下さい。

5. Turing turrets around require "Haribote aircraft mod". Place item called "Phxis" in place of the brick slab block. (Refer to the screenshots I added)
主砲及び副砲の旋回にはハリボテエアクラフトModが必要です。羅針盤をレンガハーフブロックの場所に設置して砲塔を旋回させて下さい。スクショを載せておきましたので参考までにどうぞ。
6. Finally. I trust every one of you to not reproduce my work and claim that it's yours. So please don't. And I hope you enjoy my work! (I appreciate if you could report to me if anyone is claiming the ownership of my ship unjustly.) Redistribution and partial or full plagiarism are strictly forbidden as well.
最後に、大和は私にとって我が子の様に大切な作品です。でもみなさんにマイクラでの軍艦建造の面白さと軍艦その物のの凄さを是非体験して頂きたいという一心で配布を決心しました。なのでどうか無断転載や作品の部分盗作及び完全な盗作、そして二次配布などはお控えいただきます様お願い申し上げます。もしそれらの行為を見かけた場合、私の方まで連絡して下さると幸いです。

Thank you!