Red Bull Racing RB15 speculation thread

[carisi2k]

Anyway back to the RB15 and I think it will be able to achieve race victories just as the rb14 did especially in Max's hands. The Honda is now clearly the equal of the Renault and in some respects was further beyond Renault by the end of the year. If Red Bull could win with bits and pieces of a Renault engine then imagine what it can do with factory honda engines while still having STR as a test bench.

[aral]

Is there any hope that we can get back to the subject matter which is the RB15? Rehashing old debates about Honda in years from 2013 to date is not relevant. Note that some off topic comments have been removed

[gandharva]

https://it.motorsport.com/f1/news/red-b ... 38/?nrt=54

Adrian Newey has decided to adopt the solution that reduces the temperature of the rear tires and that had unleashed controversy last year when Mercedes had adopted this idea.

The Red Bull RB15 is being born with the rear rims with holes: this is the news that is coming from Milton Keynes. They follow the path that was done last year, which included the controversy for Mercedes.

It will be interesting to understand if the solution that is implemented on the RB15 will only serve to control the temperature of the rear tyres or if, instead, it will also have an aerodynamic effect.

The FIA technical commissioners had immediately said that the holes were legal, as they had a marginal aerodynamic effect, and had been designed by Aldo Costa as a solution to avoid overheating of the rear tyres of the W09, and the judgment was then confirmed also from the FIA/stewards during the Mexican GP who had been summoned by Mercedes, fearing a claim from Ferrari that on the matter had submitted a request for regulatory clarification.

The team of Brackley, fearing a protest of Ferrari, for some GP had preferred to run with the closed holes, but once conquered the 2018 title, the silver arrows had not hesitated for a moment to exploit a very expensive change.

Rumors from Maranello claim that the 670 will not have this wheel rim solution, at least not at the start of the 2019 season

[ME4ME]

Funny how Italian media always credit the technical director for inventions pursuit by a team.

[Flying JPS Lotus]

https://www.formulapassion.it/motorspor ... 16049.html

The new rules on the front wing would disadvantage the beaten trim and consequently also in Milton Keynes would be adapted

As already emerged for Mercedes and more generally depending on the trends expected for 2019, the wider wing profiles at the front should lead the single-seaters to assume a lower inclination of the leading edge of the diffuser. A factor that seems to have also conformed to Red Bull according to the latest rumors reported on the pages of the newspaper La Gazzetta dello Sport by technical expert Paolo Filisetti. In fact, thanks to the extreme inclination of the nose downwards and a shorter wheelbase than the direct competition, about 20 centimeters if compared to the Mercedes of 2018, the RB14 was able to provide first-class chassis performance.

However, the new requirements dictated by the wings called to divert more centrally the turbulence seems to have imposed on the teams a review of the layout of the vehicle. At Milton Keynes, however, they would not have abandoned the key concept that has raged in the last decade, but would have resorted to a less extreme solution. A sort of 'compromise' that would be in line with what Ferrari did last season. Reduced inclination, halfway between that of the RB14 and the more 'neutral' Mercedes which has a minimum diffuser attack angle (1.2 degrees). Such a decision would also affect the wheelbase of the car, with an increase of about 8 centimeters. In spite of this, the compactness of the Honda engine should allow the RB15 to maintain a rather small section of the sides compared to the Toro Rosso STR13 of last season. The first Red Bull car to be equipped with the Japanese power unit.

Equally interesting seems to be the shape of the nose, defined as "evolution of the current one, especially with regard to the power supply of the socket S-duct. The deflectors in front of the sides have been elaborated, combined with the bottom equipped with longitudinal 'rails'. Perhaps, precisely because they are among the most sought-after solutions, they will not be visible at the presentation". Obviously, the greatest uncertainty is linked to the performance of the already mentioned Honda power unit that from the noise captured should maintain the architecture implemented in the second half of last season. The updates would focus on the combustion chambers, the turbocharger and the ERS system. All to increase performance, but also reliability.

Biggest changes coming to the RB15.

• Reduced inclination, halfway between that of the RB14 and the more 'neutral' Mercedes which has a minimum diffuser attack angle (1.2 degrees). Such a decision would also affect the wheelbase of the car, with an increase of about 8 centimeters.

• The Honda engine should allow the RB15 to maintain a rather small section of the sides compared to the Toro Rosso STR13

• The shape of the nose, defined as "evolution of the current one, especially with regard to the power supply of the socket S-duct

• The deflectors in front of the sides have been elaborated, combined with the bottom equipped with longitudinal 'rails'

[godlameroso]

https://www.formulapassion.it/motorspor ... 16049.html

The new rules on the front wing would disadvantage the beaten trim and consequently also in Milton Keynes would be adapted

As already emerged for Mercedes and more generally depending on the trends expected for 2019, the wider wing profiles at the front should lead the single-seaters to assume a lower inclination of the leading edge of the diffuser. A factor that seems to have also conformed to Red Bull according to the latest rumors reported on the pages of the newspaper La Gazzetta dello Sport by technical expert Paolo Filisetti. In fact, thanks to the extreme inclination of the nose downwards and a shorter wheelbase than the direct competition, about 20 centimeters if compared to the Mercedes of 2018, the RB14 was able to provide first-class chassis performance.

However, the new requirements dictated by the wings called to divert more centrally the turbulence seems to have imposed on the teams a review of the layout of the vehicle. At Milton Keynes, however, they would not have abandoned the key concept that has raged in the last decade, but would have resorted to a less extreme solution. A sort of 'compromise' that would be in line with what Ferrari did last season. Reduced inclination, halfway between that of the RB14 and the more 'neutral' Mercedes which has a minimum diffuser attack angle (1.2 degrees). Such a decision would also affect the wheelbase of the car, with an increase of about 8 centimeters. In spite of this, the compactness of the Honda engine should allow the RB15 to maintain a rather small section of the sides compared to the Toro Rosso STR13 of last season. The first Red Bull car to be equipped with the Japanese power unit.

Equally interesting seems to be the shape of the nose, defined as "evolution of the current one, especially with regard to the power supply of the socket S-duct. The deflectors in front of the sides have been elaborated, combined with the bottom equipped with longitudinal 'rails'. Perhaps, precisely because they are among the most sought-after solutions, they will not be visible at the presentation". Obviously, the greatest uncertainty is linked to the performance of the already mentioned Honda power unit that from the noise captured should maintain the architecture implemented in the second half of last season. The updates would focus on the combustion chambers, the turbocharger and the ERS system. All to increase performance, but also reliability.

Biggest changes coming to the RB15.

• Reduced inclination, halfway between that of the RB14 and the more 'neutral' Mercedes which has a minimum diffuser attack angle (1.2 degrees). Such a decision would also affect the wheelbase of the car, with an increase of about 8 centimeters.

• The Honda engine should allow the RB15 to maintain a rather small section of the sides compared to the Toro Rosso STR13

• The shape of the nose, defined as "evolution of the current one, especially with regard to the power supply of the socket S-duct

• The deflectors in front of the sides have been elaborated, combined with the bottom equipped with longitudinal 'rails'

Very interesting.

[LM10]

Very interesting indeed, but wouldn’t you need to be a team member to know such details?

[gandharva]

Biggest changes coming to the RB15.

Nah. Pure speculation. All based on the AMUS article from last week.

Btw. same stuff came up when they banned EBD. This is what Adrian told media in the past:

"I used rake as no exhaust blowing was available and I will try to do it again"

I'm pretty sure this has not changed much, especially when you look at how good last years car performed.

[carisi2k]

I seriously doubt that the rb15 will have less rake. I expect it to have as much rake as the Rb14. This is what separates a red bull from a Mercedes (aside from the engine and the silver) . Expect the rb15 to utilise more of the air going over the sidepods in a coanda effect on to the rear diffuser as used on the rb14.

[Pany]

Totally right. Those article is bullshit. Concerning the rims with holes I believe RedBull is stating to use it in 2019, so that try to convince other teams and FIA to banner it because of excessive costs and so block mercedes evolution on tire management.

[gandharva]

Totally right. Those article is bullshit. Concerning the rims with holes I believe RedBull is stating to use it in 2019, so that try to convince other teams and FIA to banner it because of excessive costs and so block mercedes evolution on tire management.

Fully agree regarding the wheel rim holes. Clever way to cook it up in media so FIA keeps an eye on it and maybe completely bans it right at the beginning. We all know know that tyre overheating was and likely still is the achilles heel of Mercedes.

[carisi2k]

I agree that red bull really wants those holes banned especially since the front blown axle has been banned. Although it probably doesn't cost much, anything that could bring the top guys back to the field would be looked at by the lower field. Red Bull supporting it might work in getting the thing banned.

[ME4ME]

I wonder if something clever can be done with these rim holes..

I'm thinking along the lines of increasing the hole size in the rim and inserting some kind of double-walled bushing with a thermal expension coefficient much larger than the magnesium rim itself. At low temperature the actual size of the hole will need to fall within the range of what the FIA deem acceptable as a hole with the primary funtion of cooling, rather than a hole big enough to primarily act as a moveable aerodynamic device. Then, once at working temperature the inner wall of the bushing would expand and increase the diameter of the hole and thus cooling capacity. I guess with the proper use of material and possibly some fancy anisotropic characteristics, the temperature-diameter relationship could be tuned to optimally work with Pirellis 2019 tyre range, or actually .. maybe even use differently tuned bushing sets for each individual tyre compound.

[ENGINE TUNER]

The cars ultimately have more potential for downforce, however they'll be stuck with more drag. Engine power will be even more important next year.

What gives you the idea that the cars will be generally more "draggy" next year? The front wings will cover 25mm more of the face of the front tires, thus lowering drag. The rear wing will be higher (giving it more clean air), have a greater wing span and chord(both giving more efficiency) and will probably have a lower angle of attack(much decreased drag). Of course the knock on effects of decreased sealing of the floor could increase drag, but I anticipate lower(or similar) overall drag across the grid. Why do you think otherwise?

[humble sabot]

Well, Newey finally gets a split turbo PU. Will he design a chassis that takes advantage of this, or cram the turbo inlet up against the back of the fuel tank? Like McLaren did.

Will they go air-to-water like Ferrari and Merc? Or will they keep the twin air-to-air arrangement that they and STR currently have?

This year's bodywork is already incredibly compact. The RB15 could take that to a whole 'nother level again.

Bigger, simpler wings next year, with shorter bargeboards and smaller front brake duct allowances. They'll also have to ditch their blown front wheel hubs.

Shorter, but longer bargeboards, the foot plate of the bargeboards will have more surface area. The cars ultimately have more potential for downforce, however they'll be stuck with more drag. Engine power will be even more important next year.

I would not be surprised if the extra length barge board helps some teams with drag reduction.