The rudder is made of aluminum, about 3/16" thick The forward edge is rounded over. The trailing edge is tapered.
The rudder is made to kick up when beaching and has a rather elegant mechanism to accomplish this. The mechanism is two pieces, each which pivots on a bolt. When in the down position, the leading edge of the rudder is parallel to the mounting pin, and hence parallel to the transom. The rudder ends up angled in the water because the Sidewinder transom is angled.
The tiller is 41 inches long, with a slight bend at 14 inches forward from the rudder.
Click any of the following pictures to enlarge.