Aston Martin have brought a comprehensive update package for their AMR23 at the Canadian Grand Prix. The updates primarily focus on significant changes to the sidepods, floor, and engine cover. The most noticeable alteration is the increased sculpted profile beneath the sidepods, aimed at enhancing airflow in this particular area. This design approach takes inspiration from Red Bull's RB19, which has effectively exploited the same aerodynamic concept, and also influenced Ferrari's latest update in Spain. Notably, the sidepods of the AMR23 have featured a narrow upper channel since the beginning of the season. However, the width of this channel has now been reduced while maintaining its steep trajectory, thereby amplifying the flow pressure as it passes towards the rear (see below).
Ferrari's sidepod evolution
This bears a striking resemblance to the upper portion of the new sidepods on Ferrari's SF-23, which also reduced the width of the upper "tanks" from last year's F1-75, while retaining a narrow channel fed by the bypass duct (see pics below). These developments indicate a notable convergence between Aston Martin and Ferrari, suggesting a broader trend towards increased aerodynamic similarity among all F1 cars in 2024.
Greater understanding aiding Ferrari's performance
Considering the current scenario, another noteworthy observation is the diminishing gap between a competitive design choice and a less competitive one. Fine-tuning the dynamic and aerodynamic setups of the cars has become crucial to optimising their performance. In Spain, for instance, Ferrari's new package appeared significantly uncompetitive, almost regressive. However, in Canada, the circuit's distinct characteristics, coupled with Ferrari's deeper understanding of the car's behaviour, vindicated the modifications devised by Ferrari's aerodynamicists. It is worth noting that other teams more competitive than Ferrari thus far this season have also pursued similar trends.
Changes to engine cover
It is important to acknowledge that both Aston Martin and Ferrari independently arrived at the changes implemented in Montreal as part of a meticulous evolution of their respective cars. Apart from modifications to the sidepods and the floor, including alterations to the front section and lower volumes, the engine cover has also undergone development. The latest adaptation incorporates a shorter vertical fin positioned at the rear and separated from the cover by an L-shaped cut. This solution facilitates improved downwash of the airflow toward the rear beam wing, increasing extraction from the diffuser.
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