Talk:Expert Handling/@comment-208.46.179.250-20170905170808/@comment-27029853-20170905171310

If you'll notice the "ACTION:" header on the card, any upgrade card with that header requires an action to use.

So you use your normal action that you get after completing a maneuver to use on this card and that then allows you to perform a barrel roll action. So without any other upgrades that allow you to perform multiple actions (in this case Experimental Interface would be plausible)

It's some technical wording required to ensure that the player doesn't do multiple barrel rolls per turn.