In the photo above the adhesive scar can be seen on the tail. from the round float. Another failure, that I have no photo evidence of. Is an attempt at making the whole rear float system rotate . This was to attempt better taxi maneuver. Waste of time and glad it never worked out. It worked like out board boat steering. Since this was on a horizontal pulley with a vertical axis the cable would fall off and wedge . I got in a real fix the first time on the water.