
The Azerbaijan Grand Prix weekend took another dramatic turn for Esteban Ocon and the Haas team. Following a disappointing qualifying session in which the French driver finished 18th, the stewards delivered a hammer blow. Hours after Saturday’s time trial had ended, Ocon was disqualified from the results for breaching the Technical Regulations, meaning he had to start Sunday’s race from the pit lane.
The offence was no minor clerical issue or procedural slip-up. It related to the most scrutinised area of car design in modern Formula One: the aerodynamics. More specifically, it related to the rear wing. FIA inspectors found that Ocon’s car was in violation of Article 3.15.17 of the Technical Regulations, which deals with what has become known as the “flexi-wing rule”. The Haas rear wing was found to exceed the permitted deflection limits under load, an offence that the governing body has been particularly strict about policing this season.
The flexibility of aerodynamic components has long been a source of tension between teams and regulators. The FIA’s position is straightforward: aerodynamic devices must remain rigid within prescribed tolerances to prevent any team from gaining an unfair advantage through hidden, movable surfaces. The infamous ‘mini-DRS effect’, whereby wing tips bend back to reduce drag on straights while returning to position under braking, is precisely the sort of loophole that the new regulation was designed to close.
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The flexiwing crackdown
Article 3.15.17, the clause under which Haas were penalised, was only introduced in 2025. It specifies the maximum allowable deflection of the rear wing’s main plane tip when subjected to a defined static load. Initially, the permitted range was set at two millimetres.
However, as engineers began to push the limits of this new boundary, the FIA quickly lowered the tolerance to just 0.5 mm under a 750 Newton metre load. This change was intended to eliminate any suggestion that rear wings were being designed to flex deliberately during races.
By June, at the Spanish Grand Prix in Barcelona, the campaign against flexible aerodynamics had expanded further. The FIA introduced tests for front wing elements, reasoning that the same principle applied to all of the car’s aerodynamic surfaces. Teams had long experimented with minute elasticity to balance downforce and drag, but the governing body decided that this had gone too far.
In Baku, Ocon and Haas became the first team and driver to breach this reinforced rulebook. FIA inspectors reported that the rear wing of Ocon’s VF-25 had deflected by 0.6 and 0.825 millimetres at two measured points — both beyond the strict 0.5 millimetre threshold. The team did not contest the results. Instead, Haas engineers admitted that the discrepancy had arisen from a manufacturing defect during wing assembly.
This acknowledgement made the outcome inevitable. With no technical argument with which to mitigate the situation, disqualification was confirmed and Ocon was stripped of his lowly 18(th) place on the grid.
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It was a troubled qualifying session
This technical setback compounded an already frustrating day for the Frenchman. While his young teammate Oliver Bearman managed to progress to Q2, Ocon was eliminated in the opening phase. He complained not about car balance or track grip, but about a recurring braking issue that he described as ‘massive’.
He said that he was struggling with his wheels locking on almost every lap, despite applying 30 to 40 bar less brake pressure than Bearman in comparable conditions. This left him with reduced grip, pronounced understeer and repeated excursions into Baku’s unforgiving run-off zones. The time lost mounted quickly, and ultimately he finished more than three tenths of a second behind his teammate. This allowed Bearman to level their head-to-head qualifying battle at 8–8 for the season so far.
“It’s a shame,” reflected Ocon, “because the car had a lot more speed than I could demonstrate. We had a problem with the brakes, the wheels were locking, and that meant I could not carry the pace into corners. It was frustrating.”
Following his disqualification, which wiped away his 18th-place starting slot, the stewards permitted Ocon to take part in Sunday’s race under exceptional circumstances. Usually, a driver who fails to set a lap within 107 per cent of the pole time is excluded from competing. However, in this case, permission was granted, and the Frenchman was relegated to starting from the pit lane.
Implications for Haas and the flexiwing debate
For Haas, the penalty was particularly ill-timed. The team has been trying to establish itself firmly in the midfield battle, and its qualifying pace in Baku hinted at the possibility of scoring points. Bearman’s Q2 run showed that the VF-25 could be competitive. However, Ocon’s exclusion means any opportunity for a two-car strategy is gone, leaving Haas dependent on the rookie to deliver results.
More broadly, the FIA has sent a clear signal that even minor deviations will not be tolerated. Ocon’s rear wing deflection exceeded the tolerance limit by just 0.1 and 0.325 millimetres — amounts so small that they would be imperceptible without precise instrumentation. Yet, in the tightly controlled world of Formula 1, where thousandths of a second matter, the stewards treated it as a material breach.
This strictness reflects the FIA’s desire to put an end to flexiwing controversies once and for all. In previous years, rivals have accused leading teams of exploiting structural elasticity to gain straight-line speed. Red Bull, Mercedes and Ferrari have all been the subject of suspicions at various times. In response, the governing body has introduced tougher tests and narrower margins of compliance. Haas’s infringement provides an early test case of how rigorously those rules will be enforced.
For the drivers, this episode highlights the sometimes harsh reality of Formula One. Ocon’s qualifying performance was already affected by a technical fault beyond his control. Losing his grid slot for another issue beyond his control highlights how dependent competitors are on their machinery being both fast and fully compliant.
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Ocon’s future is in focus
The disqualification may also sharpen scrutiny of Ocon’s own performance. Since joining Haas, the French driver has had an uneven season, with his battle with Bearman in qualifying swinging back and forth without either man establishing dominance. An 8–8 split halfway through the year speaks volumes: Ocon is neither being comprehensively outpaced nor putting clear daylight between himself and the rookie.
This puts a greater emphasis on avoiding mistakes and seizing opportunities. For Ocon, however, Baku represented the opposite. He was disadvantaged in qualifying, penalised after scrutineering and will now have to spend a long Sunday afternoon trying to make up ground from the back of the grid.
Starting from the pit lane is no small handicap in Baku. The track’s narrow middle sector and long straights make overtaking a combination of precision and bravery, and the risk of incidents is always high. Ocon will need both luck and patience if he is to salvage anything meaningful from the weekend.
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MORE F1 NEWS – Baku: Hamilton furious at Ferrari as strategy blunder leaves him only P12

Lewis Hamilton endured a disastrous qualifying session at the Azerbaijan Grand Prix, ending up only twelfth on the grid after Ferrari’s strategy call backfired in Baku. The seven-time world champion was left visibly frustrated, insisting that the wrong tyre choice in Q2 cost him a place in the fight for pole.
Hamilton did not hold back in his criticism, openly blaming Ferrari for leaving him on soft tyres while rivals advanced on mediums. He described the decision as a major error, one that left him “very disappointed” after believing he finally had the pace to challenge at the front. The setback comes despite Hamilton topping Friday practice and looking stronger than teammate Charles Leclerc heading into the session.
Qualifying unravelled when most of those ahead opted for the medium tyre in Q2, leaving Hamilton running on softs. The seven-time champion insisted that he had wanted to switch, but the call never came...READ MORE ON THIS STORY
Thiago Treze is a Brazilian motorsport writer at TJ13 with a background in sports journalism and broadcast media, alongside an academic foundation in engineering with a focus on Computational Fluid Dynamics (CFD). This combination of technical knowledge and editorial experience allows Thiago to approach Formula 1 from both a performance and narrative perspective.
At TJ13, Treze covers driver performance, career developments, and key storylines across the Formula 1 grid, while also analysing the technical factors that influence competitiveness. This includes aerodynamic development trends, simulation-driven design approaches, and the engineering decisions that shape race weekend outcomes.
His reporting bridges the gap between human performance and machine development, helping readers understand how driver execution and technical innovation interact in modern Formula 1. Coverage often connects on-track events with the underlying engineering philosophies that define each team’s approach.
With a global perspective shaped by both journalism and technical study, Thiago also focuses on Formula 1’s international reach and the different ways the sport is experienced across regions.
Treze has a particular interest in how Computational Fluid Dynamics and aerodynamic modelling contribute to car performance, offering accessible explanations of complex technical concepts within Formula 1.
