How Alfa Romeo experimented while testing

Alfa Romeo C39 front wing

Photo by: Giorgio Piola

The team tested a new variant of its front wing, which is to build on the “unloading” concept introduced in 2019.

The main level’s design has been essentially reversed, with a raised section at the inboard end used to encourage flow under the wing, while the outboard section is now dipped in to discourage it (green highlight roughly matches the shape of the old design). The tendon and geometry of the valves thereafter have also been optimized to take advantage of this.

These changes are likely to reduce the wing’s pitch sensitivity, adjust the Y250 vortex, which separates at the junction of the main plane and neutral section, and improve the outflow and front of the tire.

Alfa Romeo Racing C39 detail

Photo by: Mark Sutton / Motorsport Images

For the second test, the team added their own version of the now widespread “rabbit ears” to the chassis. These L-shaped aero devices are designed to help lock the airflow over that section of the vehicle.

Alfa’s interpretation of this design is a two-part matter, which is then also divided into two parts in the horizontal section.

Alfa Romeo Racing C38 fins

Photo by: Giorgio Piola

Alfa Romeo had these fins in a similar location last season. A new shovel (red arrow) also appeared at the rear end of the cloak, which was divided in two in the upper area. This will help draw the airflow out towards the bargeboard area more effectively.

Alfa Romeo Racing C39 rear wing pillar detailed comparison

Photo by: Giorgio Piola

The team also briefly tried out a new rear wing pillar configuration in Barcelona, ​​which featured a much bolder gooseneck design (left) than those previously seen on the Alfa (right).

The team, which is almost as tall as the central DRS actuator pod, is expected to achieve an aerodynamic gain over the full span of the wing and possibly even help improve the effectiveness of DRS.

Antonio Giovinazzi, Alfa Romeo Racing C39

Photo by: Mark Sutton / Motorsport Images

Not limited to just the new design, but certainly noteworthy is how the team also reduced the height of the flaps on the outer edges to soften the tip vortex and reduce drag.

Kimi Raikkonen, Alfa Romeo Racing C39, turns

Photo by: Glenn Dunbar / Motorsport Images

The team also presented a new engine cover in the second test. It’s a similar design to one that was used in certain spots last season, and instead of a full-length shark fin, it has a mini design on the back of the engine cover.

For comparison, see the larger engine cover fin below that will be seen on the C39 during the remainder of the test.

Kimi Raikkonen, Alfa Romeo Racing C39

Photo by: Andy Hone / Motorsport Images