Ship roles (division of labor)

[Jeb]

Actually, I think solar sails are different from solar collectors. I'm pretty sure I read a post from a beta tester about how solar sails give a bonus to strategic movement, but not movement on the tactical map. Maybe Instar or somebody could confirm this.

I noticed a component pictured in the screenshots included with the preview over at Gibworld that I haven't seen before. Is this the fabled solar sail? If not, what is it?