Talk:Autothrusters/@comment-46.5.17.10-20160501205808/@comment-27029853-20160501215252

You'll find auxiliary arcs printed on the template with a dotted line, such as on the Hound's Tooth, Firespray, and Ghost.

If the ship has a little circle around its primary weapon symbol and on the template, it's a turret and therefore doesn't count as an auxiliary arc.