So this came up in a game yesterday and reading through the rules I was getting mixed feelings about the conclusion. My opponent was flying Darth Vader with Afterburners and Supernatural Reflexes.
Afterburners - After you fully execute a speed 3-5 maneuver, you may spend 1 standard charge to perform a boost action, even while stressed.
Supernatural Reflexes - Before you activate, you may spend 1 force charge to perform a barrel roll or boost action. Then, if you performed an action you do not have on your action bar, suffer 1 hit damage.
He attempted to use Supernatural Reflexes to barrel roll, only to fail the action. The question arose whether or not he had to spend the force charge since he did not complete the action. The same scenario came up later when attempted to use Afterburners to boost, which also presents a second question of whether or not the ship takes 1 hit damage for a failed action.
Looking at the rules, I could not find anything about the costs for failed actions. The closest I could find was, "If a red action fails, the ship does not gain a stress token." which would seem to indicate that the ship would not take the penalty for a failed action.
What do other people think?