A new “slide” in Red Bull as a means against hunting porpoises?

(Motorsport-Total.com) – One of the key performance factors for the current generation of ground-impact Formula 1 cars is underside aerodynamics – an area that is often invisible. And as we’ve seen a variety of different side solutions from the teams this year, it seems – from the looks we were able to capture – that there are also different approaches to the bottom.

In Red Bull there is something new to see in the publisher


Each team has its own interpretation of how best to extract performance within the confines of the new regulations, although each team studies the designs of its competitors to find the optimal solution.

And with porpoise continuing to be a headache and aerodynamics under the body a key part of that, there have been some question marks since Imola over a concept Red Bull is using for the underside of the RB18.

The bottom of the Red Bull has a sliding type, which is a strip of metal with holes, located in the far rear corner of the body and seems to bring some performance advantages.

The most obvious assumption is that the metal brace prevents the bottom from skewing under load, and thus prevents the porpoise from starting too early.

The bottom of the Red Bull RB18

Red Bull has a kind of underground feud Zoom

This can be achieved in two ways: first by adding some stiffness directly to that area of ​​the subfloor, but second also by making it act as a kind of slip – by preventing the floor from skewing further once it hits the rail.

For this reason, the component is made of metal, not carbon, so that it does not corrode much.

Less weight, better aerodynamics?

While many of Red Bull’s competitors had to add metal trusses to the top of the ground to prevent the floor from sagging too much, this was not the case with Red Bull – suggesting the team has the problem under control.

That’s not to say it won’t be any different at some point, but it’s clear that the team in its current situation is not dependent on it to meet the performance requirements.

As we’ve seen with Alpine’s new undercarriage in Imola, the inclusion of a strut can save weight since less undercarriage material is needed to meet the same strength requirements.

The Red Bull runner also has some advantages in terms of aerodynamics. Not only is the surface clamped closely to the trailing edge, but it also makes an abrupt curve toward the trailing edge, causing the vortex to propagate. And also holes can have an aerodynamic meaning.

The boat instead of space and flight

Looking at this photo, it is also worth noting some other features of the RB18’s lower body, such as the metal insert in the floor cavity that limits the deflection of the lower body, and the configuration of the central fuselage is interesting.

The front part not only curves sharply outward, but also has an interesting Z-shaped gradient geometry, in which the cross-section of the stern of the boat decreases in the aft area and meets the diffuser.

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Interestingly, this reminds us of the type of design associated with a ship hull in the boating industry rather than the usual association of Formula 1 with aviation.

Red Bull has embraced this design feature but has shown no interest in moving the diffuser line as forward as regulations allow, while some of its competitors have made several advances in this regard to increase the size of the diffuser to increase the vertical direction.

Instead, Red Bull has opted for a more gradual vertical transition, which may help them when we consider the effect of the porpoises.

A new approach at Ferrari

Ferrari took a different approach, opting for a smoother shape for the chassis and struts. The rim wing pictured below was introduced earlier in the season when the team was testing the new redesigned underbody in Australia.

But since they only had one available, Ferrari decided not to use it there or in the subsequent race at Imola.

Under the chassis of a Ferrari F1-75

This is what the bottom of a Ferrari looks like Zoom

The lower part of the chassis features a modified rim that eliminates the McLaren spoiler that was customized earlier in the season. But, perhaps more importantly, it also features a bolster mounted under the body, similar to Red Bull.

It looks like the team also went through the free practice sessions in Australia, when you could only do a few laps. Because Ferrari recently tried two different types of undercarriage while testing the Pirelli tyres. According to the regulations, this is now possible because the test can be completed with existing cars.

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