The idea here is that the stiffeners must conform to the tapered shape of the rudder. (Small at the tip or trailing edge, and much wider at the front. The rudder is actually a very complex shape that contains multiple tapers from top to bottom as well as in width from side to side. So the stiffeners must be very small at the trailing edge where they essentially come together with both sides of the skin, and they then widen out as the skin gets wider towards the front.
Over the course of a week, all the stiffeners have been completed and are Clecoed the the rudder skin. It is very important to mark all parts so that once all the hand work is finished and you start assembly, everything goes back to the correct spot.
The rudder skin from the outside shown all the Clecos, ready for final drilling.
