just like right shoulder of military uniforms, the flags appear backwards because they are supposed to look like they are blowing in the wind, which is an indication of forward movement, i.e. charging ahead. hijack complete.
and they're not really American flags... only 2 stars on that thing. Maybe like America + Mastercraft X2 = 13 striped, 2 starred flag? Or maybe Mastercraft has 2 manufacturing plants?