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Insight: The in-season development race

NEWS STORY
17/07/2018

The 2018 season sees one of the closest and toughest fights in recent years. While that epic battle is fought on-track, one of the determining aspects of the championship is happening off-track... the in-season development race.

Seeking its fifth successive titles, Mercedes will focus mainly on three areas: aerodynamics, the power unit and the tyres. The aim of aerodynamic development is to find new and better bodywork packages. For the power unit, the team will usually pursue two goals. The first is to bring new component designs to the PU; the second is to learn how hard it can actually push the PU.

At the beginning of the season, the team wants to make sure that the power unit runs reliably. As the reliability has to be proved on the dyno, Mercedes will usually start a little more conservative to have a product that can run the required mileage. Once a reliable base has been established, all subsequent long runs of the engine will focus on trying to extract more power. In those runs, the team will be more willing to push the PU a bit harder on the dyno. This is a well-calibrated process as the manufacturer aims to find the exact limits of the PU without overstepping them - but knowing that if it does overstep the mark, there is still a proven configuration on the track. The third focus area for in-season testing is the tyres, because the teams only get to see them for the first time properly in winter testing. The tyres are a major performance factor and it takes a while to fully understand them and be able to exploit them to the maximum. This might not necessarily have an impact on the subsequent development and design of the car; it will, however, very likely change the way the team uses the car in order to get the most from the tyres.

The exact amount of time a team can find over the course of the season is one of the better-kept secrets of F1. However, it is sufficient to say that in-season development has considerable impact on the season's result. If a team were to stop development of their car after the first race, while all the others brought developments for the rest of the season, that team would drop several positions in the standings - simply by not bringing improvements to their car. In F1, if you don't go forwards, you go backwards.

In terms of the development schedule for in-season upgrades, this depends on the components. For the power unit, the development course is mostly dictated by the regulations. With only three PUs for the entire season, a team wants to make sure that the mileage is split relatively evenly between those three. Other components are driven by the specifics of the circuit. Monza, for example, typically needs a lower rear wing level than most of the other tracks. So the team will develop the rear-wing and low-downforce package sufficiently in advance of Monza to be able to construct those pieces for the race weekend. For the aero programme, an outline plane will be established that says roughly when you will want to introduce new packages. It's usually spaced to a sufficient degree such that the team is confident that it will have found a decent number of gains which are then brought to the track as a package.

However, those schedules are very fluid - mostly, because the team can never be sure precisely where the gains are going to come, how big they will be and how easy they will be to implement.

Last but not least, there is also the opportunistic kind of development - where someone just has a good idea and the team decides to make it. So while some update packages might have been planned for months, others updates might be brought to the car as soon as the team finds them.

Driver feedback plays an important role. While it will rarely change the fundamental performance direction of the car, driver feedback allows the team to modify its approach and make sure the car really suits the driver. This is especially true for all aspects of driver comfort, for example seat position, mirrors, steering wheel angle or pedal spacing. While those might seem like minor details, they are important to get right as a driver who is uncomfortable won't be able to get the best out of the car. While the key ingredients of a fast car are usually universal for all drivers, driver feedback still impacts the performance development of the car, as it helps the team to identify the areas of the car they should focus on in the ongoing development process.

A team will want to ensure that it doesn't sacrifice next year's performance for this year's points. However, the decision on when to shift more and more people from this year's development to next year's is not an easy one - especially in a hard-fought fight.

If a team is miles ahead in the championship, it's a relatively easy decision because it can back off early, knowing that the others won't be able to catch up. The same is also true for a team that is miles behind, because no matter how hard they try, they won't be able to catch the other teams.

It gets more difficult when the championship fight is really close. If it is close, a team will tend to give a bit more to the current championship than it might be otherwise comfortable with. The upcoming regulations are also a factor in this equation. They remained fairly stable for the current season, meaning that teams could change over quite late, knowing that it wasn't going to hurt anything in particular. For next year, however, the aerodynamic changes in the regulations are quite big, so it would be risky to ignore them.

When teams see something good that they have not tried before and looks implementable on their respective cars, they will look at it in simulation or the wind tunnel and, if it is good, they will introduce it on their car as well. However, because the concepts of the cars are very different, those inspirations tend to only affect small things in a small way - and they're not easy to implement either.

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READERS COMMENTS

 

1. Posted by Insane Reindeer, 18/07/2018 7:05

"Every time someone says that there is no "racing" in F1 any more I want to bang my head against the wall! I have only been following F1 since the early 80's and I can't remember a single a season when all the cars that lined up for last race where exactly as they were at the beginning of that season. Has there ever been a rule in F1 that said that there must be no changes to any part of the cars for the duration of the season? If so did it work? How did the teams try to get round it? I can't understand why there is this insane drive for F1 to be IndyCar these days. Why has it become such a evil and degenerate concept that in F1 the "racing" is something that never stops? I have tried to understand but I can't. After all its not like we aren't inundated with information and graphics and illustrations showing us how the racing is conducted. "

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2. Posted by imejl99, 17/07/2018 12:04

"Quote: The exact amount of time a team can find over the course of the season is one of the better-kept secrets of F1.
Maybe to make last race also Melbourne? Strange and hardly acceptable ideas aside, I was blessed with opportunity to be toured around F1 factory some 10 years ago. Except for tailor and baker craft needed for engineer to convert tubes of carbon sheets looking like clothes into solid bodywork pieces, most intriguing was steering wheel explanation. There was a undistinctive knob on the steering wheel with positions from 1 thru 9, for air/fuel mixture. Race on 3 or 4. Cruise on 2, if big advantage on 1, saving engine. Battling someone go to 5, maybe 6, but not for long. Go to 9 and blow the engine in 1 lap. That was for the V8. I wonder if ICE of contemporary PU can be controlled in similar way...
there are so many variables, one have to admire every team ever existed."

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