So reading the FAI rulebook, p.vi top:
Simulates six minutes of tactical action...
Movement rates are actually based upon three minutes; the time simulated has been doubled to maintain player interest and simulate the effect of 'dead time' inherit [sic] in any military operation"
I read this to say that it is based upon six minutes of shooting [hit rate, damage etc] but only three minutes of movement. Doubling the rate at which damage occurs should "maintain player interest" as well as keep the game moving by blowing up ships in half the time.
So if I wanted to reconcile the ratio of movement distance to firing rates, I'd have to double the movement rates, right?
This seems like it would make for big moves, which would be fine on a big table.