I have often wondered how to model a deck wing in clay. The wing I am attempting to model has a constant chord/airfoil profile; however, its swept curvature is in 2 directions. As you view the vehicle from the rear, the wing is symetrically arched about the vehicle center line. Additionally, from the top view the wing symetrically arches to the rear of the vehicle. Anything to can recommend is greatly appreciated!
Post by Steve Austin on Feb 12, 2008 8:47:46 GMT -8
Deck wings or spoilers can be difficult to model purely because of the weight of clay involved, they will have a tendency to sag. If the majority of the form can be developed in foam with a light coating of clay this would be the easiest way to go. If you have a lot of form development you will have to support the underside while modeling the top. Once the top is developed a likewise top support so that you can reverse the model and develop the underneath.
Most spoilers have a airfoil section so providing the leading edge and trailing edge are modeled to your design the mid part of the shape is not a problem. Most mid sections can be modeled as a constant curve so supporting this area will not cause a problem later. The touch down of the spoiler should be made as a permanent point, in other words a bondo squeeze so that that shape never changes and develop the shape upwards from that point.
Ideally if the whole model can be developed on a bench you could make ground templates to drag in the basic plan form and another set of end templates so that you could run a basic curve to get the end arch. This would provide you with the early dynamics for the spoiler. Like I said the touch down needs to be fixed so that this area always marries to the car. A good set of datums when bench modeling will ensure symmetry and an easy check if things look a little off.