He was actually interrogated by the Feds for this. 

He used logic to figure out the most efficient way the inside of a ship would be laid out. Said ship being a vessel in the United States Navy. It was so accurate that the DoD wanted to know who was giving him details about ship layouts because his description of areas included places civilians aren’t allowed to see ever.

I’m reminded of when Kubrick was making “Dr. Strangelove” and managed to get far too many of the details of the bomber used correct for the DoD to ignore, but he’d only ever seen a couple pictures of the outside of it and just managed to somehow get it right inside and out.