This is the I-401 one of the only 3 Sen-teku I-400 class submarines that were build for the japanese imperial navy under the commands of your emperor, Hirohito.
The I-400 sisters were a included into a master plan of the japanese empire, that was to sail the three subs to the panama's channel, in order to destroy it and cut the onlyway of USA and europe easy access from atlantic to pacific ocean.
There are two bases you can download, the # 1 is a bit more fancy one because only holds its weight from one pillar, but you will need to print it fully solid.
The submarine model is not mine (obviously), it was made by the sketchup user: The Architect, so it would be good if youconsider support him/her. but the bases are made by me ( consider support...... ... ... nah just kidding)
the highest you can allow yourself
Thissettings only applies if you are going to print the base #1, because the weight of the submarine can break it