Sergio Perez, Red Bull, Baku City Circuit, 2023

McLaren and Alpine bring biggest updates as teams reveal Azerbaijan GP car changes

2023 Azerbaijan Grand Prix

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Having had four weeks to work on their cars since the last round of the world championship, the 10 Formula 1 teams have brought a series of revisions to their cars for this weekend’s Azerbaijan Grand Prix.

The long flat-out sections on the Baku City Circuit see some of the highest straight-line speeds of the year. Teams have brought other parts aimed at reducing the drag produced by their cars to improve their competitiveness, and also to improve their braking performance at the several points on the track where they must shed a significant amount of speed.

However this is also the first sprint event of the season, and following changes to the format teams have only a single hour of practice to evaluate their latest upgrades. They will be anxious to ensure they maximise the first 60 minutes of running to get the most out of their new packages.

McLaren have particularly high hopes for their upgrade package. The team admitted at the launch of its MCL60 there were key areas of the car’s design they wanted to improve on which would not be ready in time for the start of the season.

It has brought a series of upgrades for its floor and rear wing this weekend, which Lando Norris said yesterday brings the MCL60 to the specification the team should have had at the start of the year. McLaren said the new floor “significantly alters local suction distribution as well as floor structure strength and positioning, resulting in an overall gain of load.”

AlphaTauri, who like McLaren endured a disappointing start to the season, have also brought an extensive update for their car. Much of this is aimed at drag reduction, but also includes improvements to cooling and braking into low-speed corners, which has been a particular area of concern for the team and its drivers.

Alpine has brought a significant revision for its A523 including a “completely new floor” which both Esteban Ocon and Pierre Gasly will run. They expect this will provide a “greater overall load.”

Red Bull may have dominated the opening rounds of the championship and know they are permitted less aerodynamic development than their rivals – partly as a result of their penalty for exceeding the 2021 budget cap – but they are not standing still. The RB19 has revisions to its sidepods this weekend including a “consequential” change to the air inlets.

Among their closest rivals, Ferrari and Aston Martin have only declared one update each. Mercedes have done more work on their W14, though their anticipated major shift in development direction is still a few races away. The black car has minor tweaks to its rear wing, front brake duct, rear airflow deflectors and front suspension.

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2023 Azerbaijan Grand Prix F1 teams’ updates

The teams described the changes to their cars for this weekend’s race as follows:

Red Bull

Sidepod Inlet

Reason for change: Circuit specific – cooling range

Difference: “Revised aspect ratio inlet compared to previous version, wider span and reduced in height”

Description: “New shape exploits the higher-pressure air available for the inlet and improves cooling efficiency, which can reduce the magnitude of the exit opening and is beneficial for performance and enlarges the ambient temperature range of operation.”

Coke/Engine Cover

Reason for change: Circuit specific – cooling range

Difference: “A consequential change for the sidepod inlet geometry, no requirement to change to the louvre exit panels.”

Description: “To have continuous surfaces for the sidepod and top body, the sidepod had to widen and then blend to the floor split line, existing louvre exit panel and quarter panel junctions aside the gearbox casing.”

Floor Edge

Reason for change: Performance – local load

Difference: “Minor revisions to the edge and wing geometries to realise latest intent”

Description: “The new surfaces exploit latest developments for load and compliment the updated sidepod shape to minimise losses incurred, overall beneficial.”

Floor Fences

Reason for change: Performance – local load

Difference: “The outer fence has a revised top edge profile.”

Description: “Better alignment to the local conditions to ensure the surfaces are appropriate and a small amount of load improvement will result.”

Rear Corner

Reason for change: Circuit specific – cooling range

Difference: “A single winglet on the outboard face of the wrap-around has split into two elements”

Description: “To avoid local separation, the winglet has become two elements and this in turn reduces the losses which affected the exit back pressure and therefore efficiency of the duct.”

Ferrari

Rear Wing

Reason for change: Performance – drag reduction

Difference: “Lower downforce Top Rear Wing design”

Description: “Compared to what used previously this season, this component features depowered Top Rear Wing profiles in order to adapt to Baku City Circuit layout pecu
liarities and efficiency requirements.”

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Mercedes

Rear Wing Endplate

Reason for change: Performance – local load

Difference: “Subtle changes to wing tip and endplate surfaces with infill options to shed drag.”

Description: “Resurfacing improved flow surface quality and wing tip performance in crosswind. Infill option reduces flow expansion behind wing, reducing downforce and drag.”

Front Corner

Reason for change: Circuit specific – cooling range

Difference: “Increase duct exit area.”

Description: “Increased front brake duct exit area to increase mass flow feeding the disc to improve cooling – a requirement for this high braking circuit.”

Rear Corner

Reason for change: Performance – local load

Difference: “Lower deflector endplate trim.”

Description: “Results in cleaner endplate flow, which increases local load on the deflector elements, which in turn increases diffuser and floor load.”

Front Suspension

Reason for change: Performance – flow conditioning

Difference: “Lower wishbone outboard fairing reprofiled.”

Description: “Improves flow attachment around the outboard fairing in high steer, resulting in better flow to the floor and increased performance.”

Alpine

Floor Body

Reason for change: Performance – local load

Difference: “Completely new floor with multiple detail changes since previous specification.”

Description: “The new floor has a different pressure distribution with greater overall load. Both cars will have the new floor here.”

Front Suspension

Reason for change: Performance – drag reduction

Difference: “Revised angle of incidence of the front top wishbone fairing.”

Description: “The angle of incidence to the front top wishbone fairing of the A523 has been revised as part of its upgrade package.”

Rear Suspension

Reason for change: Performance – local load

Difference: “Revised suspension leg fairings and rear brake drum flick.”

Description: “The revised suspension leg fairings and rear brake drum flick brings an increase in local load through improved flow conditioning at the rear of the car.”

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “Revised top rear wing main plane.”

Description: “The revised top rear wing main plane is part of a low downforce configuration which is suited to the demands of the Baku City Circuit.”

Front Wing

Reason for change: Circuit specific – drag range

Difference: “Trim to the front wing flap.”

Description: “The trim to the front wing flap is, like the above, circuit specific as part of the lower downforce configuration suited to the demands of the Baku City Circuit.”

McLaren

Floor Body

Reason for change: Performance – local load

Difference: “New floor geometry”

Description: “The new floor geometry significantly alters local suction distribution as well as floor structure strength and positioning, resulting in an overall gain of load.”

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “Lower drag dear Wing assembly”

Description: “New lower drag Rear Wing assembly, with an offloaded main plane and Flap, resulting in an efficient reduction of downforce and drag.”

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “Rear Wing Flap Trims”

Description: “Two options of Rear Wing Flap Trims which reduce flap loading and resultant downforce and drag of the [rear wing] assembly.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “New upper beam wing Element”

Description: “This new beam wing geometry features an offloaded upper element, which, as a result of the interaction with the upper Rear Wing assembly, leads to an efficient reduction of downforce and drag.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “New upper and lower beam wing Element”

Description: “This new beam wing geometry features an offloaded upper and lower element, which, as a result of the interaction with the upper Rear Wing assembly, leads to an efficient reduction of downforce and drag.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “New upper and lower beam wing Element”

Description: “This new beam wing geometry features a further offloaded upper and lower element, which, as a result of the interaction with the upper Rear Wing assembly, leads to a further efficient reduction of downforce and drag.”

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Alfa Romeo

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “A new configuration of the rear wing with a shorter chord”

Description: “The new rear wing configuration answers the specific requirements of the Baku circuit, reducing drag and improving the aerodynamic efficiency of the car.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “A new configuration of the beam wing, moving from a stacked configuration to a biplane one.”

Description: “The new beam wing configuration answers the specific requirements of the Baku circuit, reducing drag and improving the aerodynamic efficiency of the car.”

Front Wing

Reason for change: Circuit specific – balance range

Difference: “New front wing flap profiles”

Description: “The new flap geometry, including an additional optional trim, address the balance changes resulting from the introduction of the new rear wing configuration, and help the team achieve maximum efficiency for the car on Baku’s very particular track.”

Aston Martin

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “The new rear wing has smaller upper elements compared to those used so far this season. There are two versions of flap to suit this wing.”

Description: “The geometric changes reduce rear wing load and hence drag to allow the car setup to be optimised for the characteristics of this circuit.”

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Haas

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “The rear wing prepared for the Baku circuit characteristics will generate less aerodynamic drag respect the wings used so far in 2023.”

Description: “The level of downforce will be lower as consequence of the rear wing design defined to reduce the drag coefficient. The result will be that at the high speed that can be reached in Baku the car will allow to improve its performance.”

AlphaTauri

Front Wing

Reason for change: Circuit specific – balance range

Difference: “The new front wing flap reduces element chords and incidence to reduce overall front wing assembly downforce generated.”

Description: “The low drag nature of this circuit reduces the amount of downforce required from the front wing assembly to give the correct car balance, which is achieved with this change in flap geometry.”

Coke/Engine Cover

Reason for change: Circuit specific – cooling range

Difference: “The central bodywork exit has been altered to improve cooling performance.”

Description: “The change to the bodywork improves cooling such that the need for additional auxiliary cooling exits is reduced. This increases overall car downforce for a given cooling requirement.”

Rear Wing

Reason for change: Circuit specific – drag range

Difference: “The new upper rear wing assembly reduces downforce generated by reducing the camber and incidence of the wing elements.”

Description: “The low drag nature of this circuit dictates a less loaded upper rear wing assembly to achieve the optimum balance between downforce generation for cornering and drag reduction for straight line performance.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “The new biplane beam wing assembly reduces downforce and drag by reducing the chord and incidence of the second element.”

Description: “This beam wing assembly allows a further drag reduction step in addition to the new upper rear wing assembly if deemed optimum for overall lap time given the low drag nature of this circuit.”

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “The new single element beam wing component generates less downforce and drag than the biplane assembly in the absence of the flap element.”

Description: “This beam wing variant allows a further drag reduction step if deemed optimum for overall lap time given the low drag nature of this circuit.”

Rear Corner

Reason for change: Performance – local load

Difference: “The new rear drake drum has an additional inlet inboard of the main drum fence to increase rear brake disc cooling. The drum vane cascade behind the inboard inlet has also been redesigned to increase the overall downforce generated by improving their relative positions on the drum face and increasing their number.”

Description: “The very high braking energy of this circuit requires an increase in rear disc cooling. The change to the drum vanes increases local downforce generated by this assembly and is particularly useful at this circuit given the low speed nature of the corners.”

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Williams

Beam Wing

Reason for change: Circuit specific – drag range

Difference: “We have a shorter chord [rear lower wing] available for this event. This is the same basic geometry as the previous version but with a trim to the trailing edge”

Description: “This simply provides a reduction in the drag and the downforce of the car to suit the requirements of Baku”

Nose

Reason for change: Performance – local load

Difference: “We have modified the shroud on the underside of the nose box to alter the local curvature”

Description: “This improves the local flow quality and consequently increases the load from the front wing and nose assembly”

2023 Azerbaijan Grand Prix

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Keith Collantine
Lifelong motor sport fan Keith set up RaceFans in 2005 - when it was originally called F1 Fanatic. Having previously worked as a motoring...

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