It's really not quite right to think of the Navy's program as a nuclear engineering one. With their schools to prepare sailors for the boats, they want to make

It's really not quite right to think of the Navy's program as a nuclear engineering one. With their schools to prepare sailors for the boats, they want to make sure everyone knows why and how all protection systems and procedures work, as well as instilling a respect for the severity of radiation exposure and efficacy of protective measures. The goal isn't designing plants; someone else already did that. It's knowing enough to know why plants were designed the way they were, as well as being able to safely operate, maintain, and fix the thing. There is some calculus, but calculus really slows things down when you're trying to work through a lot of material.