Aerodynamics, Downforce, Ground Effects | Jim's Garage
In 1965 a graduate of Cal Tech, Jim Hall, applied all he had learned to a new Chaparral racing car, the Chaparral 2C. This one stunned the competition not just because its body was aerodynamically efficient, but Jim had added an articulating ... dscn4127s.jpg. Later, in 1969, Jim Hall would break ground again with what is probably the first âground effectsâ race car. The Chaparral 2J used an auxiliary motor that powered a set of fans that pulled air from under the car ...