The Icon A5 is an amphibious sport aircraft that features a 100 hp engine driving a pusher propeller. Though the airplane is not yet in production, it has generated considerable publicity at airshows like Oshkosh.
To perform a water takeoff in X-Plane, first select this aircraft as usual. Then, open the Aircraft menu and click on Aircraft & Situations. In the dialog box that appears, click the Waterway Takeoff button.