Rear Spoiler / Wing
A rear spoiler is used on sports cars,and it improves the vehicles handling,and makes the vehicle look more appealing. The rear spoiler is commonly located on the trunk or on some other component near the rear of the vehicle. The purpose of having a rear spoiler is to provide downward force on the back of the vehicle so that traction is increased. To do this, the shape and size of the spoiler has to be perfectly matched for the type of driving conditions the vehicle will likely encounter. For example, a race car that will mainly be subjected to high speed straight lines will need a much small spoiler than a race car that encounters allot of high speed turns on a short track. It is important to get the right size spoiler for your vehicles application because too big of a spoiler can actual hinder performance in some situations.
Besides increasing the vehicles performance, a spoiler also brings a sportier look to the vehicle. Many of the spoilers that are added to a vehicle just for looks have very little aerodynamic benefit or performance purpose. These spoilers that are only equipped for looks are normally very short so that unnecessary drag isn’t created when driving regularly. Any type of spoiler no matter the size will benefit some because as the air is split on the wing, the air will be destabilized around the rear of the vehicle. Destabilizing the air does not create more down force but it instead stabilizes the vehicle at high speeds. An unstable vehicle will likely shake once it reaches high speeds because the airflow around it is being violently churned up as it moves faster though the air.
The material used to make the rear spoiler will vary greatly depending on what it is built for but the most common materials are fiberglass, carbon fiber, ABS plastic, and silicon. High performance spoilers which encounter allot of wind resistance will likely use fiberglass or carbon fiber because they are very strong and wont deform once subjected to the tremendous amounts of pressure put on it. The spoilers which are mainly designed for looks will likely be made out of ABS plastic that is painted to match the rest of the vehicle.
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