The third day of testing also allowed us to seek out some more of the interesting technical details we haven’t covered so far, with teams not only trialling new parts but also being less covert with the ones they might have been hiding in the opening few days.
Ferrari introduced a new rear wing design on the third day of running, with several changes – including a different downforce level – but the most obvious development is the switch from a double pylon arrangement to a single pillar.
The new version has two side effects, as the single pillar has a swan-neck top line that connects to the DRS pod, while a circular structure is needed at its base to wrap around the exhaust so it can connect with the crash structure.
There are some trade-offs between the two solutions, not only in terms of their aerodynamic impact but also in their weight and how they deal with the associated loads.
There’s a number of square chequered stickers placed around the wing, which are monitored by a rear facing camera in order that the team can establish whether the wing is performing within tolerances from a flexion point of view.
It’s also interesting to see a design solution appear on this design that we saw on the Alfa Romeo last season, with a teardrop-shaped flap pivot employed (circled, flat style on the other wing, inset). While minimal, there will obviously be some aerodynamic benefits from this arrangement, including pushing the local airflow off the surface differently.
A look under the front brake drum on the Red Bull RB19 as the mechanics work on the car reveals some of the changes that have been made by the team heading into 2023. You can also see the fibrous wadding packed into the assembly to help with heat management.
This is a tactic that Red Bull used early last season before finding the brake assembly's final form, following numerous changes to the shape of the disc fairing and the coatings applied to it and other brake components, such as the calipers.
The rear end of the Alfa Romeo C43 removed from the car gives us a great view of numerous components, from the beam and rear wings, very narrow crash structure, rear suspension (both the arms and some of the inboard elements) and the rear brake ducts, including their associated winglets.
The image on the right also shows the C43’s rear end, albeit this time with the brake drums removed which reveals the ducting that wraps around the caliper and weaves out to the rear of the assembly where there’s an outlet.
You can also see the fairing which encloses the brake disc and helps control the transfer of heat between the disc, the wheel rim and the tyre.
The Williams FW45’s front brake duct assembly without the drum in place shows us how the team has switched to a brake disc fairing that’s similar in design to the one used by Red Bull in 2022, as the fairing is aligned with the caliper below it.
Williams also trialled a lower downforce rear wing configuration on the final day, as it ticked another aspect of its program off the checklist.
The wing is similar in overall design to their higher downforce arrangement but the mainplane and upper flap take up less space within the allowable box region.
Alpine also tried a lower downforce rear wing on the final day of testing, with a similar configuration to what we’ve seen from the rest of the test (right image), albeit with a focus on reducing the wing’s chord in the outer portion to help reduce drag, while maintaining load in the central section.
A close-up view of the nose tip section of the Red Bull RB19, which is not only wider than last season, but it also features a NACA-style inlet for driver cooling, rather than the oval style solution used last season. The inlet is trimmed with mesh too, in order that it’s difficult for any debris to become lodged in the internal ductwork and reduce the desired cooling effect.
Also note how the forward section of the nose tip has shut lines indicating it’s a removable vanity panel, whereby the team can gain access to the structure within, which may be a place where the team houses ballast, just as its sister team, AlphaTauri did last season.
At the rear, we have a close-up look at the RB19’s rear wing, which follows the same DNA as last season’s but an interesting feature is the outboard bracket that bridges the static upper tip section and the moveable DRS flap.
This will prevent the wing from rotating too far beyond its intended position of rest when the DRS flap closes after use, while the outer section of those two elements also appear to have been strengthened, likely in response to issues that the team have faced in their recent past.
A row of mini vortex generators can be found on the forward section of the floor of the Mercedes W14, with a pair of larger ones thrown into the mix too, as the designers look to improve the airflow rolling out from the underside of the car.
Behind this we find the edge wing, which has been rolled up in the forward-most section and also has its own strake to help encourage the airflow’s behaviour.
A rear view of Lewis Hamilton’s steering wheel confirms he’s sticking with the layout he’s had over the last few years, with the slender paddle shifters up top and the wishbone-style clutch paddle across the bottom of the wheel. Note how he also uses a finger socket on the end of the paddle to help with the modulation of the clutch.
