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The chassis of car is simply the frame and structural elements that hold the vehicle together. The body, doors roof etc are all attached to the chassis. Suspension, brakes and wheels are also attached to the frame.Â
For the dragster we will be using a balsa wood blank as the chassis and the body of the car. Light weight and aerodynamic are desirable but you should not compromise on structural strength.
Suspension supports the vehicle on the road. For cars, it helps keep the rubber on the road. Control arms and spring support the vehicle. Wheels and axles connect the vehicle to the road. Working together traction is optimized while keeping the ride comfortable.
The suspension on your dragster is not as complicated. It consists of wheels, axles and a bearing surface to reduce friction. There are many combinations of wheels, axles and bearings that can be used. As you will learn, each combination will have its own performance characteristics.
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