關於「x-plane 11序號」標籤，搜尋引擎有相關的訊息討論：

X-Plane 11.0 Public Beta One Has Arrived!developer.x-plane.com › 2016/11 › x-plane-11-0-public-b...X-Plane 11 Window API Sampledeveloper.x-plane.com › code-sample › x-plane-11-windo...Is the product key the same for x-plane 11 and x-plane 12 upgrade?forums.x-plane.org › ... › X