I missed out on this book when it was originally published as a hardback a few years ago. Fortunately it has been re-issued as a softbound book. The book is the definitive volume on this submarine. It was the largest submarine to serve in WWII at over 400 feet long with a crew of almost 200 and weighing over 5200 tons.
The first chapter gives us an overview of the Japanese submarine service in WWII. Chapter two covers the specifics of the I-400 class, with chapter three giving us the details and specifications on the aircraft the sub was designed to carry, the Aichi M6A “Seiran” attack-bomber. This chapter includes detailed drawings and pilot memories.