Red Bull RB8 Renault

[raymondu999]

Ooh... can't wait for those tech shots now

[Matt Somers]

As long as theres the slot to the periphery of the floor then floor 'holes' are legal. Sauber and Ferrari still run them. I understand the new RBR slots are similar to the old ones with a large scoop joined to the fence inside the rear wheel.

Oooo sounds interesting, much like what I proposed after Monaco? http://somersf1.blogspot.co.uk/2012/06/ ... 2-now.html

[aral]

As long as theres the slot to the periphery of the floor then floor 'holes' are legal. Sauber and Ferrari still run them. I understand the new RBR slots are similar to the old ones with a large scoop joined to the fence inside the rear wheel.

Oooo sounds interesting, much like what I proposed after Monaco? http://somersf1.blogspot.co.uk/2012/06/ ... 2-now.html

Come on! Everybody knew how to make the slots legal.

[raymondu999]

Gilgen - I think Matt is suggesting a slit not to the side like Ferrari/Sauber, but to the back, along the vertical strake, as he says here:

they could detach the floor from the aero strake (shown in orange). To make it a slot doesn't even mean being able to see the gap in the floor, it could be as fine as a hair.

[stefan_]

[Matt Somers]

Gilgen - I think Matt is suggesting a slit not to the side like Ferrari/Sauber, but to the back, along the vertical strake, as he says here:

they could detach the floor from the aero strake (shown in orange). To make it a slot doesn't even mean being able to see the gap in the floor, it could be as fine as a hair.

Thanks Raymond that's precisely what I meant.

[Forza]

Today under FIAs supervision RB broke seals on bothe Vettel and Webber's gearboxes as they've changed the clutch basket on both units. Apparently they've changed that part in 4 of the last 5 events. Info is from twitter @cmckinleyF1 so I don't know if it's reliable.

[siskue2005]

I had a doubt when i saw last race, but now it clearly shows they have lowered their nose
The picture below confirms that RBR has lowered their nose
Is it coz they want a little bit more front downforce?

[irang]

Today under FIAs supervision RB broke seals on bothe Vettel and Webber's gearboxes as they've changed the clutch basket on both units. Apparently they've changed that part in 4 of the last 5 events. Info is from twitter @cmckinleyF1 so I don't know if it's reliable.

Anyway, direct quotes to avoid confusion.

@cmckinleyF1 Red Bull broke seals on Vettel and Webber's gearboxes today under FIA supervision to change the clutch basket on both units #F1

@cmckinleyF1 That's allowed under the rules but interesting that Red Bull have done it at 4 of the last 5 events now. Must be a precautionary measure #F1

[aleks_ader]

I had a doubt when i saw last race, but now it clearly shows they have lowered their nose
The picture below confirms that RBR has lowered their nose
Is it coz they want a little bit more front downforce?

Yes in some part i think you have right...

If we could look a side view comparasions we imediate noticed that the height difference has made with just front tip... In new one that tip is little more longer and lower like in old one, where is that trasition almost completely flat...



So that change would create low pressure area => flow acceleration , pozitive+ sidefect is additional downforce (not much, but there it is)... However that is not the only one reason, there goes for whole pacage... Let me explain...

In my opinion they also want to balance the whole car (aerodynamic balance during braking, acceleration, cornering is the key in sucesfully tyre managment=>low deg.)... The nose change is very minior, but anyway they reduce the whole volume of underpass towart front spitter (little)... Furdermore they also manage additionally to accelerate that underpass flow with small bullkhead under nose (some sort of pelican nose like Lotus, Williams, but in much more smaller shape) toward splitter... So they actually slightly reduce a diffuozor air feed in order to little deacrease rear downforce and make car more manageable under udersteer conditions...
As we know front tyre wear dictate the car race pace on the long runs...

Maybe with that pourpuse they also change front wing (add 2nd sharp tip) and revised a latest tunnel ...

That changes very couple together with DDRS and if we take a acount that this sys efected on whole flow extraction (aceleretaion) from infront of car, they get pretty interesting combination... Seem that little tweak on first look dont play huge role, but that was crucial leap which help Red Bull in that finnaly WC grand finale...

[siskue2005]

thanks aleksandergreat

I also think the pellican nose is there to reduce the air choking under the nose cone

no matter how high the nose is some part of the air coming under it (especially the part near the under side of the nose) will form an air dam and choke and slow down than rest of the flow....with the pellican it will create a low pressure area and accelerate the flow.
So infact the pellican will aid in much faster flow to the splitter and eventually to the diffusor.

so i think RBR here did this to reduce the choking of air ....that is, they have decreasd the height of the nose and also added a smaller pellican under so together they get an accelerated flow to splitter.

please correct me if i am wrong

[raymondu999]

I also think the pellican nose is there to reduce the air choking under the nose cone

Interesting. What do you propose the air is choking against?

Gilgen - I think Matt is suggesting a slit not to the side like Ferrari/Sauber, but to the back, along the vertical strake, as he says here:

they could detach the floor from the aero strake (shown in orange). To make it a slot doesn't even mean being able to see the gap in the floor, it could be as fine as a hair.

Thanks Raymond that's precisely what I meant.

Any shots of this new proposed solution for floor holes?

[Forza]

Red Bull will have to switch to new spec alternators by US GP at the latest

Code: Select all

Red Bull will have to switch away from the safety of its old-spec alternators by the United States Grand Prix at the latest, AUTOSPORT has learned.

In the wake of the double alternator failure that Sebastian Vettel suffered at the Italian GP, Renault reverted its teams back to a 2011-specification to ensure there were no repeat problems.

However, with not enough of the old batch to last the entire season, Renault has continued work on a new version to make sure it has something ready for the final races.

Renault's head of track operations Remi Taffin told AUTOSPORT that the French car manufacturer was now happy that it has a version that should not suffer the same problems that have struck this year, and its teams would have to switch across imminently.

"The alternator has been changed and modified," he said. "We had a new version we tested in Singapore, and another one in Suzuka. We ran that one again in Korea - and will do so here in India as well.

"As well as that, we were running it on the dyno and that will become the specification that we will introduce this year when we need it. But we also have other specifications that are coming from R&D that are focused on 2013."

Taffin said that there is enough of the 2011 specification to last teams through the next two races, but that a switch over to the latest version would be needed for Austin.

"I think at the latest, and obviously it depends on the mileage we do, it should be the United States," he explained.

"Obviously it is not going to be for all teams, but we don't know for who yet."

Although Red Bull may feel reluctant to move away from the guaranteed reliability of the older version because of its championship situation, Taffin said the final decision about what the team does will be made by Renault alone.

When asked how Renault will decide when teams have to switch to the new version, Taffin said: "To be very honest it is a very difficult answer, because it is not any more just a technical issue. There are personal feelings about what should be run, and there are bad memories and things like that.

"So even if we have gone through all the validation process, when you discuss about introducing a new spec of alternator – people say, 'stop, should we not just keep with the old one'.

"The key point is where is the shift point from a 2011 unit with too much mileage on, to the new spec?

"But we will take the decision as always, because for any internals of the engine you cannot really leave that to the teams. It is not because they are not technically speaking OK to do that, but there is too much of an inside [emotional] feeling."

[siskue2005]

I also think the pellican nose is there to reduce the air choking under the nose cone

Interesting. What do you propose the air is choking against?

here is what i propose, the higher the nose tip the air at that point has to change direction and has to slow down (red arrow) and may cause seperation at that point
where as the cleaner air can pass almost straight at will not decrease its speed (green arrow)
that maybe the reason for RBR decreasing its nose tip and also the pellican

[kris]

I also think the pellican nose is there to reduce the air choking under the nose cone

Interesting. What do you propose the air is choking against?

here is what i propose, the higher the nose tip the air at that point has to change direction and has to slow down (red arrow) and may cause seperation at that point
where as the cleaner air can pass almost straight at will not decrease its speed (green arrow)
that maybe the reason for RBR decreasing its nose tip and also the pellican

Wasn't the concept of high noses introduced to have more air under the car?
I was wondering if with the bent nose they are trying to create an area of comparative low pressure under the nose to assist in better air flow under the car? Or am I just thinking nonsense
[later..] The bulge according to newey is an attempt to help balance the car.. I should read the blogs a bit more before I speak

http://www.f1technical.net/development/379