Does the mean that if I'm doing a red 1 hard turn to the right I can switch it to the red 3 hard turn to the right?

Yes. Hera can swap any red maneuver on her dial for any other red maneuver on her dial.

(EDIT: Or a green maneuver for another green maneuver, of course.)

'ed. Yes, or any other red maneuver

Add Navigator to the equasion and you can swap to almost anything.

Too bad you can't equip crew Hera too

Does the mean that if I'm doing a red 1 hard turn to the right I can switch it to the red 3 hard turn to the right?

You can even do a 1 hard turn to the left, and switch it for a 4 Koiogran.

Does the mean that if I'm doing a red 1 hard turn to the right I can switch it to the red 3 hard turn to the right?

You can even do a 1 hard turn to the left, and switch it for a 4-Koligran.

More on this ability of Hera's- if she gets the "Shaken Pilot" crit (the one that won't let you reveal a straight maneuver), wouldn't it therefore be completely legal to reveal a green bank, then switch to a straight with her ability, as long as it stays green?

I would say no cause the crit overrides her ability. Like the Damaged Engine overides Unhingded Astromech.