Red Bull RB9 Renault

[lio007]

is this a kind of duct? Does anybody know what it is used for and when it has appeared?


Here's a German-GP pic...I think there is not such a kind of "hole"

[emmepi27]

Monza spec VS Spa spec

[One]

Thanks for explaining that. I can see the difference in approach between this diffuser and the Ferrari one, for example, where they appear to be ending the strakes before the exit and have straightforward horizontal edges. http://formula1.com/wi/enlarge/sutton/2 ... ita462.jpg https://pbs.twimg.com/media/BTpddYGCMAAykrM.jpg:large .
I presume these detailed optimisations go some way to explaining the manifestly excellent performance of the red bull diffuser.

I am sorry this is a stupud question... t looks to me that Red Bull Diffuser is clearly wider than that of other cars. Apparently Diffuser is such a important part of a car, I do not understand how only Red Bull maked their diffuser wider. Should you know the answer, please let me know?

[beelsebob]

Thanks for explaining that. I can see the difference in approach between this diffuser and the Ferrari one, for example, where they appear to be ending the strakes before the exit and have straightforward horizontal edges. http://formula1.com/wi/enlarge/sutton/2 ... ita462.jpg https://pbs.twimg.com/media/BTpddYGCMAAykrM.jpg:large .
I presume these detailed optimisations go some way to explaining the manifestly excellent performance of the red bull diffuser.

I am sorry this is a stupud question... t looks to me that Red Bull Diffuser is clearly wider than that of other cars. Apparently Diffuser is such a important part of a car, I do not understand how only Red Bull maked their diffuser wider. Should you know the answer, please let me know?

The teams all design the parts of their car exactly to the specifications in the rules. No one team's diffuser will be wider than another's – they will be exactly as wide as the rules allow. Any variation you think you see is likely simply to be placebo.

[RB7ate9]

Thanks for explaining that. I can see the difference in approach between this diffuser and the Ferrari one, for example, where they appear to be ending the strakes before the exit and have straightforward horizontal edges. http://formula1.com/wi/enlarge/sutton/2 ... ita462.jpg https://pbs.twimg.com/media/BTpddYGCMAAykrM.jpg:large .
I presume these detailed optimisations go some way to explaining the manifestly excellent performance of the red bull diffuser.

I am sorry this is a stupud question... t looks to me that Red Bull Diffuser is clearly wider than that of other cars. Apparently Diffuser is such a important part of a car, I do not understand how only Red Bull maked their diffuser wider. Should you know the answer, please let me know?

If you look at Monsi's post with the two pictures of the RB9 and Ferrari rear, you'll see that the RB9 has their diffuser curve (or "open") closer to the tyres. The Ferrari, though, has their "closed" closer, BUT still have a flap of carbon fiber that extends out. Both the RB9 and Ferrari have their diffuser out to the limits of the "box" or regulated dimensions they are constrained with, Red Bull just happens to choose to have theirs open to that limit, while Ferrari close it a little but have those additional trailing edge "slots".

[beelsebob]

Thanks for explaining that. I can see the difference in approach between this diffuser and the Ferrari one, for example, where they appear to be ending the strakes before the exit and have straightforward horizontal edges. http://formula1.com/wi/enlarge/sutton/2 ... ita462.jpg https://pbs.twimg.com/media/BTpddYGCMAAykrM.jpg:large .
I presume these detailed optimisations go some way to explaining the manifestly excellent performance of the red bull diffuser.

I am sorry this is a stupud question... t looks to me that Red Bull Diffuser is clearly wider than that of other cars. Apparently Diffuser is such a important part of a car, I do not understand how only Red Bull maked their diffuser wider. Should you know the answer, please let me know?

If you look at Monsi's post with the two pictures of the RB9 and Ferrari rear, you'll see that the RB9 has their diffuser curve (or "open") closer to the tyres. The Ferrari, though, has their "closed" closer, BUT still have a flap of carbon fiber that extends out. Both the RB9 and Ferrari have their diffuser out to the limits of the "box" or regulated dimensions they are constrained with, Red Bull just happens to choose to have theirs open to that limit, while Ferrari close it a little but have those additional trailing edge "slots".

Note, it was actually Lotus who started the whole thing with open sided diffusers.

[marcush.]

filling the diffusser with air coming from the bottom of the car is the objective to make most downforce .so you want to increase crossection of the diffuseer as the air travels to the back of the car AND avoiding separation within the diffusser at the same time (as this does make the difusser smaller )
I don´t think the expansion of the difusser must be in vertical direction to achieve this ,but obviously the upper surface add drag if you are taking that route maybe (but the effect might be minor as the wheels are so close and flow is all but straight uninteruppted in that area anyways...you might even be in a position to feed air in favourable areas by this flared diffuser approach

[engineerboyf1]

Hi, I have a question burning in my head. How do teams attach pieces of carbon fibre together such as elements and cascades on the front wing?

Loved the shot from Sutton images of the 'tunnel' style t-tray and turning vanes underneath nose cone.

[AnthonyG]

Hi, I have a question burning in my head. How do teams attach pieces of carbon fibre together such as elements and cascades on the front wing?

They just glue the sepperate bits together, or make metal connectors parts?

[engineerboyf1]

Hi, I have a question burning in my head. How do teams attach pieces of carbon fibre together such as elements and cascades on the front wing?

They just glue the sepperate bits together, or make metal connectors parts?

Surely it's more advanced than glue? Maybe something to do with resin?

[Hobbs04]

I found this YouTube channel back in 2011 when red bull had EBD. He posts videos of track days and races at the Monza circuit regularly.
He mentions on his channel last week rb9 had a unique popping sound, not as crackly as 2011. He also mentioned all the Mercedes powered cars had a popping sound too. He hasn't posted anything from last weekend except the medical car and safety car. I'm not savvy on posting individual videos on this forum but when he posts Monza gp videos ill sure try.

http://www.youtube.com/user/19Bozzy92

Do yourself a favor and look up 2011 F1 EBD, turn it up too. Not only can you see the speed and braking difference between the cars you can hear the different EBD.

[elFranZ]

I found this YouTube channel back in 2011 when red bull had EBD. He posts videos of track days and races at the Monza circuit regularly.
He mentions on his channel last week rb9 had a unique popping sound, not as crackly as 2011. He also mentioned all the Mercedes powered cars had a popping sound too. He hasn't posted anything from last weekend except the medical car and safety car. I'm not savvy on posting individual videos on this forum but when he posts Monza gp videos ill sure try.

http://www.youtube.com/user/19Bozzy92

Do yourself a favor and look up 2011 F1 EBD, turn it up too. Not only can you see the speed and braking difference between the cars you can hear the different EBD.

I was there, and I can say that every Renault-powered car sounded louder and popping in downshifts, and for the first part of accelerations.
It was just like they had two completely different maps for low and high revs, with a precise switch value.

[Richard]

Surely it's more advanced than glue? Maybe something to do with resin?

Resin is a type of glue

Where a bond/glue joint is not strong enough they use metal inserts, either bonded or with a bolt/clamp. See this thread for lots of pics http://www.f1technical.net/forum/viewto ... =6&t=11557

This one has no pics but is specific to wing construction http://www.f1technical.net/forum/viewto ... f=6&t=9210

[Kiril Varbanov]

Piola illustrates the winning updates for RB9 in Belgium and Italy - http://www.formula1.com/news/technical/2013/0/1099.html

[irang]

http://www.infiniti-redbullracing.com/c ... 3358206991

Here's a little something for the geek in you...

With Singapore just over a week away, we've been putting in the hours with our fellow tech bods at Infiniti to develop a new hydrogen free 'Diamond Like Carbon' coating for the gear boxes we'll be using at the night race at the Marina Bay Street Circuit.

The Diamond Like Carbon (DLC to you and me) is already used in Infiniti road cars so we’ve re-worked the idea to use on our RB9s. The material is super-smooth which results in less friction between the elements inside the gear box. Broken down, what this means is that we can manage the temperature of the gear box and limit the scope for overheating more easily.

So there you have it.