whirl 2025(N)
drag coefficients:
Frontal Area [m²] * : 0.002
Planform Area [m²] : 0.001
Drag Coefficient Cd [-] : 0.712
Lift Coefficient Cl [-] : 0.745
evaluation:
This was our first draft for the Nationals and served as a strong foundation for future development. We built on successful elements from previous car designs that had performed well in past tests.
hexen 2025(RF)
drag coefficients:
Frontal Area [m²] * :0.002
Planform Area [m²]: 0.001
Drag Coefficient Cd [-]: 0.651
Lift Coefficient Cl [-]: 0.62
evaluation:
This had created the effect we had wanted, finally making the car quite aerodynamic, decreasing the drag coefficient from 0.725 to 0.651. We deemed this to be fit for our race ahead of us and chose this as our final car.
syre 2025(R)
drag coefficients:
Frontal Area [m²] * :0.002
Planform Area [m²]: 0.001
Drag Coefficient Cd [-]: 0.675
Lift Coefficient Cl [-]: 0.727
evaluation:
This had created a great impact, reducing the drag coefficient by a lot and giving us a decent result, but we weren’t done. We decided to put the Coanda effect into action now and make a curved body inspired by the Ravyn and the Syre and see how beneficial it would be.
zyro 2025(R)
drag coefficients:
Frontal Area [m²] * :0.002
Planform Area [m²]: 0.001
Drag Coefficient Cd [-]: 0.698
Lift Coefficient Cl [-]: 0.733
evaluation:
It did reduce some drag coefficient, but the diffuser also created more drag without a diffuser, which would increase more wake, and to replace that, we tried out none of these techniques and went with a simple design with just the curved body and nothing else.
nyx 2025(R)
drag coefficients:
Frontal Area [m²] * :0.002
Planform Area [m²]: 0.001
Drag Coefficient Cd [-]: 0.718
Lift Coefficient Cl [-]: 0.729
evaluation:
We had envisioned a drastic change in the drag coefficient, but what it turned out to be that the vortex generators itself created a lot of drag, which could not result in what we needed, so we decided to ditch the vortex generators and make a diffuser to reduce the wake at the back, which did reduce the drag coefficient.
ravyn 2025(R)
drag coefficients:
Frontal Area [m²] * :0.002
Planform Area [m²]: 0.001
Drag Coefficient Cd [-]: 0.725
Lift Coefficient Cl [-]: 0.597
evaluation:
This car aimed for precision and aerodynamics but clearly lacked them, as it had a high drag coefficient. We concluded that if we went for a curved body that ignored the Coanda effect but also had vortex generators that would create vortices, we would end up with a less wakeful car.
moonv 2024(RF)
This was our regionals 2024 car. Our mission or aim was to create a really aerodynamic car, and we wanted it to be simple. Our idea was to keep it simple by keeping in mind all the regulations. We evaluated the whole car and improved it so it stayed aerodynamic and followed all the guidelines.
