This is how the teams took the Spa tests

(Motorsport-Total.com) – The completely different traits of the three sectors of the Spa-Francorchamps Formula 1 circuit imply that teams should compromise between velocity and downforce on the straights.

Red Bull has made some modifications to the physique construction at Spa

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It was no completely different to the new era of 2022 vehicles, however final weekend’s Belgian Grand Prix highlighted the most important strengths of the Red Bull RB18 because it appeared fast on the straights with out dropping velocity in the two twisty sectors.

Red Bull additionally introduced some new components to Belgium to enhance their efficiency. The greatest of those modifications issues the transition of the physique between the aspect panels and the engine cowl. Also, the decrease management arm cowl of the rear suspension was redesigned.

The housing change leads to a extra luminous floor that may improve the underlying quantity (crimson arrow, inset) whereas shifting the airflow outward. It’s a compromise between cooling and aerodynamic efficiency.

The modifications made to the decrease arm are undoubtedly refined and don’t require structural modifications.

Interestingly, the Red Bull has a notch on the underside of the housing above the diffuser as a result of it is so near the floor (small inset, blue arrow).

The rearview mirror on the Red Bull RB18

Small modifications have been made to the rear view mirrors

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Another change the staff made to the rear-view mirrors was not featured in the automobile’s presentation documentation, because it is a minor change from a visible standpoint.

However, altering the exterior mirror end has some aerodynamic advantages. Extending the decrease a part of the skirt under the most important mirror housing (which is additionally shortened, blue arrow) not solely modifications the airflow conduct instantly, but additionally as the airflow passes round the mirror housing.

Red Bull wasn’t nearly the new components although, as there was one other attention-grabbing story: Verstappen and Perez wore completely different bodysuits in Belgium.

Parts under the Red Bull RB18

Verstappen and Perez opted for various inside flooring

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The Mexican opted for the spec launched first at Silverstone after which once more in Austria. The decrease a part of the physique has a Ferrari-like design resolution, with a tongue-like half reduce into the fringe of the flooring and protruding from it.

Verstappen could have felt that he didn’t supply the identical degree of efficiency for his wants and didn’t reap the benefits of the flooring options all through the weekend.

A Ferrari with a brand new rear wing

The Ferrari had a brand new rear wing and rear wing with decrease downforce. However, after testing in the second free observe, it was determined to not use it over the weekend.

It’s a tactic we have seen Ferrari make use of when introducing downforce parts. Instead, the Scuderia selected to enhance its efficiency in the second sector of the SPA, whereas additionally serving to with tire degradation throughout the race.

Ferrari F1-75 rear wing

Ferrari’s new rear wing was solely moved in the second observe session

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Despite the choice to not use the new rear wing, the modifications are price noting as they may very well be used once more in future races.

The new specification takes up a lot much less house in the allowable field part and virtually utterly eliminates the spoon-shaped lid design that was widespread resulting from the new rules resulting from the transition to the last board.

Mercedes and its undercarriage

Mercedes have been assured they might compete at the entrance for the Belgian Grand Prix after the summer time break, particularly when two title contenders Max Verstappen and Charles Leclerc have been compelled to start out additional up the subject resulting from penalties.

However, it shortly grew to become clear that drivers would battle with a automobile that exhibited an excessive amount of drag on a observe that demanded aerodynamic effectivity.

In addition, in the first half of the season, the issues of heating the tires have been clearly seen. The Mercedes duo could not get sufficient warmth into the rubber to set a really quick lap.

The staff made further modifications for the Belgian Grand Prix. A revised entrance and rear wing was used, and different underbody tweaks have been made, together with consumption fenders and a wing wing.

Parts under Mercedes W13

Parts underneath Mercedes W13

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The decrease finish was an space the place the staff was attempting to enhance its efficiency. The most up-to-date change is aimed toward optimizing the relationship between the entrance a part of the physique and the edge wing.

Like a few of the different teams on the grid, Mercedes have now opted for a long-edged wing that spans the complete size of the authorized space. It is curved upwards in the entrance space and a sickle formed half is utilized in the again space.

Both have been modified, with the up-facing part now having one information as a substitute of three (crimson arrows).

The sickle-shaped space has been narrowed (see the yellow line) as the underbody subsequent to it has been reshaped, and the underbody and the rear of the rim wing have been reduce to create a tapered form in entrance of the rear wheel. Shared with 2021 guidelines (see inexperienced line).

Also, modifications have been made to the entrance fences (blue arrow) to raised match the upstream and downstream modifications.

Interestingly, Hamilton opted to not use the new physique in qualifying and the race, reverting to the outdated components.

The staff additionally added triangular extensions (black arrow) to the prime of the halo, a design we have seen elsewhere, which little question assist direct airflow because it strikes round the engine cowl and aspect pillars.

Mercedes W13 rear wing

Mercedes changed the finish plate finish

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Mercedes, which appears to have suffered extra from the barrier than its rivals, has certainly made modifications to assist at the Spa-Francorchamps circuit.

But as a substitute of introducing a wholly new aspect, the designers improved the efficiency of the wing by making modifications to the wing tip, finish plate and prime flap. The W13 plate is designed in order that the groove in the wing tip may be modified to go well with the desired load of the wing.

Lewis Hamilton

An answer with downward pressure was utilized to the higher cowl

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In this case, the staff selected to utterly fill the void (crimson arrow above), a trick we noticed earlier in the season in the Alps to regulate the energy of the vortex popping out of the wing tip.

The staff additionally examined a pull-down function on the higher lid, the place the lid was reduce (crimson arrows). However, this feature was excluded because it didn’t present the essential stability between excessive speeds in the first and final sectors and low velocity in the second sector.

What’s new at Alpine?

Alpine continues to push ahead with its A522 and has additional optimized the bundle. For the Belgian Grand Prix, the staff additional modified the entrance of the underbody and its transition to the outermost grid. As you may see in the image, the backside of the new design is pressed inward in the shoulder space.

Alpine A522

Marked in inexperienced: modifications known as “Floor Fence”.

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This not solely impacts the exterior air move and the relation to the grid, but additionally determines the passage of the air move by way of the tunnel underneath the flooring, which modifications the connection to the grids once they open in the direction of the fringe of the flooring.

The staff has additionally made modifications to the design of the rear brake pipe as they proceed to search for methods to stability cooling and aerodynamic necessities.

Many teams selected to put the consumption on the within the brake hose (blue arrow) as a substitute of a devoted consumption bucket (crimson arrow), an answer we see at the entrance of the automobile.

Alpine A522 brake

Alpine A522 brake comparability

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The new resolution collects the airflow that passes between the grille and the sidewall of the tire and directs it to numerous channels that join inside the tire, a few of which have been modified as a part of the replace.

The absence of an air pit implies that the fins on the exterior of the grille are much less obstructed and may be tweaked later to additional enhance efficiency.

New rear wing on Alfa Romeo

For the challenges of the Spa-Francorchamps circuit, Alfa Romeo developed a brand new rear wing to scale back downforce and subsequently drag.

Alfa Romeo rear wing

Alfa Romeo additionally had a brand new rear wing at Spa

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The wing is a typical design with a scoop form that enables for a easy transition to the finish plate in the rule.

The greatest change from the standard design, nonetheless, issues the form of the higher plate transition, with the plate being reduce diagonally from the entrance part to the wing tip.

Alfa Romeo rear wing

For comparability: rear wing with standard specification

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The staff additionally had one in every of their standard wing specs readily available, a shortened trailing fringe of the prime flap, probably as a backup if the first selection did not work out as anticipated.

However, to allow the DRS mechanism, the staff wanted to maintain the middle part of the wing at its regular peak.

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