Talk:Submarine Radar & Passive Radiolocator (E27)/@comment-26222800-20170211234241/@comment-26705246-20170212003641

Unfortunately, from some reports from those that have completed E2, they're main slot only. Most likely because they'd make the +6 evasion engine useless if we could put them in the expansion slots.

Which is a shame, since they'd be perfect for expansion slots, and hopefully make subs that little bit better.