Go to http://incompetech.com/beta/hexGraphPaper/create.pl

Player around with the hex leg length until you get a hex that's equal in length to the base of the mini you're using:

IE, for Figurehead 1/6000 scale BBs, I'm finding .95 on the hex length leg is perfect.

Print it out, and draw lines through one of those hexes so that you're bisecting the facings and in essence recreating a Grand Fleets firing arc chart. 

I laminated my sheet, cut said hex in half along the center line, and bingo, I have a template I can lay against the edge of of my ship miniature's base and see in which arc my target is falling. 

Hurray for me

I think this could work for the latest incarnation of Starmada, too.