https://www.formu1a.uno/ferrari-al-lavo ... lla-f1-75/
Duchessa reports:
Ferrari working to improve the F1-75's aerodynamic efficiency
While Red Bull will be extracting more performance by lightening the RB18, Ferrari is working on a number of fronts with the important aim of improving the F1-75's efficiency. A car born from the minds that also gave birth to the SF70H, also the first car in a new set of regulations, which shares the F1-75's less-than-excellent aerodynamic efficiency but excellent slow-moving, traction and tyre management skills.
As David Sanchez mentioned earlier, Maranello is working on a new underbody that will solve the problems of aerodynamic lift. This would allow the Italian car to express itself to its full potential. At Ferrari, they haven't yet managed to manage the porpoising as well as on the RB18. "There was a lot of talk about Mclaren during the first tests, but Red Bull is the team that had the least problems with porpoising," an Alfa Romeo engineer told us. "I'm sure Newey foresaw it in the design phase and worked on the mechanics as well as the aerodynamics to solve it.
Ferrari uses slightly higher ride heights than the RB18 to avoid deleterious wheelspin at high speeds and when braking, especially hard braking, as well as a tie rod at the rear of the bottom. This component avoids excessive bending of the outer parts that run closer to the ground, allowing a greater load to be generated at the bottom, but with an important limitation: a minimum height that generates flow separation, thus activating porpoising. Eliminating the tie rod would mean strengthening the bottom, with losses in terms of both budget and weight. Hence the Fia concession of a component otherwise considered illegal.
The particular aerodynamic concept of the F1-75 manages, however, to limit the small percentage loss of load on the lower part of the car, generating it with the upper part, which, however, costs something more in terms of drag. Tyres and rear wing are the macro components that, on this new generation of cars, generate the highest percentage of aerodynamic resistance.
Bringing to the track a surface that would allow Ferrari to run the F1-75 even closer to the ground would allow the rear wing to be unloaded and consequently improve the aerodynamic efficiency of the Italian car, making an important step forward in terms of performance. Ferrari has also left itself some room for manoeuvre when it comes to the belly pods in order to reduce their size.
"The developments we are working on, we will only introduce them when we are sure they are mature enough to allow us to take a proper step forward." Waiting for further confirmation, not before Imola.
I used DeepL to translate but might have a few errors