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This is a digital product (PDF File+parts list)

LEGO® IJN I-400 Submarine MOC


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The I-400 was requested many times and there’s a reason why. First of all, yes that’s a micro airplane sitting on the deck prepping for take-off. Secondly, it was the biggest submarine project in WW2 and the biggest submarine class at the time. A big ambitious project led by the Imperial Japanese Navy, which eventually failed because of costs, flaws and the war ending sooner.

The LEGO® IJN I-400 Submarine MOC was built at a 1:500 scale, the same one I used for my other submarine MOCs. It is effectively the largest one in the collection and will be the largest one among the WW2 submarines in the Sea Monsters series…

The Bobby Brix Channel 2021.

This product contains a fully detailed instructions book with a parts list.

Product License use:
Personal or non-commercial use with attribution required.

Additional Information

Additional information

File Type

PDF File

File Size

12 MB

Model Designer

The Bobby Brix Channel

Software Compatibility

Adobe Acrobat Reader, Microsoft Edge