So after watching the new season of Robot Wars, I became very nostalgic about how awesome spinning weapons are.
We need a close combat flywheel heavy weapon!
General idea is a giant spinning bar/wheel that only spins when it is 'fired' with ammunition capacity being how long it can spin at a time before needing a 'battery replacement' or something. As a mechanic I don't seem how this would be any harder to introduce than some of the alliance weapons around.
So you would have to be really close to do any damage at all, and it needs time to get up to speed, but it would increase the power of your rams considerably. After each hit it needs to spin up to full speed again (transferring momentum and all of that physics stuff). ammunition changes properties like normal, greased faster rotations, charged more damage etc. Weaknesses would be the range and having to sacrifice a weapon slot for it. Could be good offensively on goldfish, but also as a ram deterrent for other ships?
Probably going to be lots of issues and balancing that I haven't thought of but it would be a cool idea!