FIA eases F1 porpoising metric from Singapore GP

Formula 1’s porpoising metric has been tweaked from this weekend’s Singapore Grand Prix to help remove potential problems caused by bumpy tracks, Motorsport.com has learned.

FIA eases F1 porpoising metric from Singapore GP
Listen to this article

As the result of the extreme bouncing earlier in the season that left drivers complaining about safety implications, the FIA announced ahead of the Canadian Grand Prix that it was introducing an Aerodynamic Oscillation Metric that teams would not be allowed to exceed.

Teams had to ensure that their car was below the maximum bouncing limit over each lap, or there was a risk of them being sanctioned on safety grounds.

In a document sent to teams ahead of the Montreal race, they were warned that breaching the rules would carry the risk of cars being excluded from events.

F1’s head of single seater matters Nikolas Tombazis said in that note: “Any car whose AOM exceeds the stipulated AOM [limit] will be reported to the stewards with the recommendation that they be excluded from the results of the sprint or race."

Following some debate with teams about the implications of the metric, it finally came in to force from the Belgian Grand Prix.

By that stage of the campaign, with teams having a much better understanding of the forces that triggered much of the early season porpoising, no team has fallen foul of the metric so far.

However, there had been some concern that some of the end of season races on bumpier tracks – including Singapore and Austin – could have triggered particular headaches.

With the metric being taken as an average over a distance – initially 10 J/kg per 100km - running of the cars had shown that if cars hit bumps on the track then those impact spikes could serve to have a dramatic impact on lifting the overall average.

Running cars on especially bumpy tracks meant that teams could inadvertently exceed the AOM limit because of the surface of the circuit rather than anything to do with there being too much porpoising.

F1 returns to Singapore for the first time since 2019, with questions marks over how the new cars will handle its bumpy street circuit.

F1 returns to Singapore for the first time since 2019, with questions marks over how the new cars will handle its bumpy street circuit.

Photo by: Lionel Ng / Motorsport Images

Ahead of the Singapore GP, Tombazis has written to teams to say that the FIA is tweaking the metric from now on to help alleviate the bumpy track complication.

The governing body has notified teams that to avoid excess energy spikes caused by track bumps skewing the metric, a new maximium reading limit will be put in place to not take into account such extreme impacts.

The FIA has said from now on that there will be a top limit of 7G attributed to readings – meaning any track strike above that will not be taken into account for compliance with the metric.

This change in approach should help teams avoid any risk of them inadvertently breaching the AOM limit.

Read Also:
shares
comments
Pain-free Albon "fit as I can be" for Singapore F1 return
Previous article

Pain-free Albon "fit as I can be" for Singapore F1 return

Next article

Vettel questions whether F1 2022 new rules effort was worth it

Vettel questions whether F1 2022 new rules effort was worth it
How BRM's one-off F1 double defied its rollercoaster history Prime

How BRM's one-off F1 double defied its rollercoaster history

It’s 60 years since BRM achieved its goal and Graham Hill led the team to a world title double. But that was just part of the remarkable story of a unique team that at times overstretched its resources and had its fair share of disappointments.

The bold F1 DRS experiment that could end the debate forever Prime

The bold F1 DRS experiment that could end the debate forever

OPINION: The effectiveness of DRS in Formula 1 remains a topic of debate as the winter break gives a chance for reflection on the racing we saw in 2022. For all of its detractors, perhaps an experiment where DRS is cast aside and the impact this has on racing is in order to truly understand its merits in modern F1.

The sliding doors moment that saved Red Bull and Porsche Prime

The sliding doors moment that saved Red Bull and Porsche

OPINION: Everything looked set for Red Bull and Porsche to join forces for the 2026 season, before the marriage between both parties was called off. While at the time it looked like a major coup for Formula 1 in gaining both VW Group powerhouses Audi and Porsche for 2026, Red Bull and Porsche have really been spared a potentially fractious relationship.

Formula 1
Dec 7, 2022
How Tyrrell’s post-Stewart era descended into a fight to survive Prime

How Tyrrell’s post-Stewart era descended into a fight to survive

Glory days for Tyrrell became increasingly infrequent
 after Jackie Stewart’s retirement. But in the latest instalment of his history of the team for Autosport's sister title GP Racing, 
MAURICE HAMILTON recalls how Ken Tyrrell’s plucky and defiantly small team stayed bold enough to innovate – springing a surprise with F1’s first six-wheeled car

Formula 1
Dec 6, 2022
How departing F1 boss Brawn views F1’s new rules - and the future Prime

How departing F1 boss Brawn views F1’s new rules - and the future

Multiple-title-winning designer and team boss Ross Brawn is finally leaving Formula 1 after nearly 50 years in motorsport. But he still has plenty of insights on what’s working and what comes next, as he revealed to Motorsport.com in a far-reaching exclusive interview in Abu Dhabi.

Formula 1
Dec 2, 2022
The key F1 management call Ferrari must make to avoid more defeat Prime

The key F1 management call Ferrari must make to avoid more defeat

OPINION: Mattia Binotto’s departure from Ferrari will naturally bring a range of changes across the Formula 1 team. But how the changes shape up and the impact they could have is set to be dictated by a key direction Ferrari’s top dogs will need to pick

Formula 1
Nov 30, 2022
The difference between Mercedes’ stumble and the fall of F1 giants Prime

The difference between Mercedes’ stumble and the fall of F1 giants

OPINION: Mercedes endured its worst season of the hybrid Formula 1 era, but was mercifully spared its first winless campaign in over a decade late on. It has owned up to the mistakes it made which led to its troubled W13. And while its task to return to title-challenging contention is not small, its 2022 season seems more like a blip than the beginning of a downward spiral.

Formula 1
Nov 29, 2022
The physical focus bringing out the best from Esteban Ocon Prime

The physical focus bringing out the best from Esteban Ocon

Esteban Ocon likes to point out he’s the first driver since Lewis Hamilton to emerge from a spell as Fernando Alonso’s teammate with a superior overall points record. While some may disagree, as LUKE SMITH discovered, the 2021 Hungarian GP winner reckons it’s not just luck which has made him France’s pre-eminent Formula 1 driver of the moment…

Formula 1
Nov 28, 2022