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TECHNICAL ANALYSIS: Alpine’s 2023 F1 A523 shows big changes as it tries to break into the top three

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Alpine was the final crew to disclose the 2023 F1 automobile, the A523, and it marks a significant change of philosophy in comparison with final yr’s machine. Mark Hughes explains the modifications to the brand new automobile for the midfielder aiming for the highest three.

Alpine’s A523 represents a vital evolution over final yr’s automobile, fully reshaped and completely different from its new entrance wing and wider nostril to its new pushrod rear suspension.

READ MORE: Alpine crew principal Szafnauer units clear goal for 2023 and shares replace on ‘100-race plan’

Aggressive aerodynamics and weight targets have been achieved, and the automobile is definitely beneath the load restrict, permitting it to position the stability to swimsuit the calls for of the person circuits.

A brand new entrance wing hangs from a brand new wider, flatter nostril. The decrease wing of the wing is now connected to the nostril as an alternative of hanging from the nostril. Technical Director Matt Harman says the brand new nostril construction provides extra freedom to make modifications to the entrance wing parts, and once more gives extra setup adjustability.


The nostril of the brand new automobile (L) is wider than final yr’s (R), with the decrease a part of the wing now connected to the tip as an alternative of hanging down. Mixed with the superior anti-dive geometry of the entrance suspension, this may assist maintain the aerodynamic stability extra constant at completely different levels of the bend.

The entrance suspension retains the earlier pushrod format, however the geometry has been modified to incorporate extra resistance to diving throughout braking. That is for the nice of the aerial platform, which is extra necessary than ever on this era of ground-effect automobiles, as a result of the automobile’s angle can decide what quantity of incoming air passes over the fuselage and below the ground. If this ratio modifications an excessive amount of throughout braking and cornering, it signifies that if the sturdy underfloor instantly starves, the rear could also be unstable and return to a benign mid-corner stability that’s solely much less responsive when the automobile is leveled. It is the other of what is desired, a steady rear within the nook however responsive within the nook. This can be a main focus of effort for all groups below this set of edits.

The change in entrance suspension geometry is definitely a very good clue to how the crew determined to realize these aero beneficial properties. Whereas final yr’s automobile proved general to be extra balanced and extra constant than its midfield rivals, they have been unable to mix it with the sort of downforce ranges achieved by the very best groups. On the A523 we are able to see a totally completely different association of entrances to the ground tunnels, which exhibits that your complete underfloor space has been redesigned and the way this important a part of the airflow works.

Underfloor is the dominant a part of this era of car efficiency.

READ MORE: 5 surprises, tech developments and daring calls from the 2023 F1 launch season


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The A523 (L) and A522 (R) present a unique suspension setup, from drawbar (R) to pushrod (L).

The radiator association and the sidepod geometry that permits it are largely decided by guaranteeing that the ground runs as tightly and persistently as doable. This additionally applies to the entrance and rear suspension geometries.

As with practically all 2023 automobiles, the radiator space has been reallocated and on this case Alpine has used that to realize narrower aspect compartments with a extra voluminous shoulder space above. The sidepod tops now function a deep Ferrari-like ditch that directs airflow to the beam wing and prevents it from spilling over the cockpit sides;

ANALYSIS: Might the brand new A523 assist Alpine’s all-French squad widen the hole between F1’s “massive three” this season?


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Evaluating the Sidepod layouts of the Alpine A523 (Left) and A522 (R) exhibits how the reassignment of the radiator format means a wider shoulder space and a discount in width of the sidepod, which now has a deeper ducted part. .

The very exhausting ground and vast physique of final yr’s automobile stored aerodynamics on the restrict and supplied a very good degree of management through the entrance and rear trip heights. With higher management of the aerial platform – and maybe with the assistance of this new nostril and wing association – ​​they felt that they had achieved, assured sufficient to maneuver away from the big aspect compartment.

VOTE: Select your favourite look of the 2023 F1 automobiles

The rear of the automobile has been fully redesigned with a change from drawbar to pushrod activation for the suspension. Matt Harman says this makes for a less complicated and lighter setup. The decrease placement of the suspension rocker arms with pushrod association might be partly chargeable for decreasing the bodywork in the direction of the rear axle than earlier than.

Reliability upgrades for the facility unit and decreasing the turbo inlet plenum temperature promise some efficiency beneficial properties right here as nicely.

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