Ducktails are a type of rear spoiler that are designed to improve the aerodynamics of a car. They are typically smaller and less aggressive in design compared to a rear wing. The main purpose of a ducktail spoiler is to create downforce, which is the force that pushes the car down onto the road, improving traction and stability.
In terms of downforce, ducktails do provide some additional downforce compared to a car without any spoiler at all. This is because the shape of the ducktail spoiler helps to redirect the airflow over the rear of the car, creating a pressure difference between the top and bottom surfaces of the spoiler. This pressure difference generates a downward force, which in turn increases the grip of the rear tires on the road.
However, it is important to note that the amount of downforce generated by a ducktail spoiler is relatively small compared to a rear wing. Rear wings are typically larger and more aerodynamically efficient, allowing them to generate much higher levels of downforce. This is why rear wings are commonly used in high-performance and racing cars, where the need for increased traction and stability at high speeds is crucial.
It is also worth mentioning that the effectiveness of a ducktail spoiler in generating downforce can vary depending on several factors, such as the design of the spoiler, the shape of the car, and the speed at which the car is traveling. In some cases, the effect of a ducktail spoiler on downforce may be minimal, especially at lower speeds where the airflow over the car is not as significant.
To give you a more personal perspective, I have had the opportunity to drive a car with a ducktail spoiler installed. While I did notice a slight improvement in the car’s stability and grip, particularly in corners, I did not feel a significant increase in downforce compared to a car without any spoiler. This aligns with the general understanding that ducktail spoilers provide a moderate amount of downforce, but not to the same extent as a rear wing.
Ducktail spoilers do add some downforce to a car, although the amount is relatively small compared to a rear wing. They are designed to improve traction and stability, particularly in cornering situations. However, their effectiveness can vary depending on various factors, and they may not provide a significant increase in downforce at lower speeds.