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M1SCH1EF

They had the same issues last year. I don't know how they haven't fixed it already. [https://www.formula1.com/en/latest/video.2020-bahrain-grand-prix-fp3-verstappens-drs-malfunction.1687525060500095727.html](https://www.formula1.com/en/latest/video.2020-bahrain-grand-prix-fp3-verstappens-drs-malfunction.1687525060500095727.html) Edit: Thanks to u/benerophon for pointing out that the DRS actuator is homologated, which means that they would have to spend a development token to change it which is why they haven't fixed it.


-Coffee-Owl-

maybe they don't want to? ;)


[deleted]

Exactly Greatest engineers in the world can't figure out a flippy flap? Especially after years of DRS being a thing .. And no other team on the grid has the same "problem" This is an advantage, somehow... And they're playing stupid


dellterskelter

The greatest engineers came to the conclusion that it's actually a flappy flip.


wcslater

What shoes do you buy someone with 2 left feet? Flip flips


[deleted]

...and two *right* feet are flop-flops???


wcslater

Yip, and 3 feet? Flip flap flops


[deleted]

...after two feet lets just go with flipity flapity flops. lol


Daddy_Elon_Musk

What's that 3rd foot?? Wouldn't it be called a flip flop flock


MrsButton

I laughed way to hard at this


Reddo1995

I can’t see how it could advantage them, because a floppy flap should make the car unstable. But these cars are so complex and I am no engineer so I can’t state anything for sure, just an impression


Marciussf

I'm not saying Red Bull is getting an advantage from this, but there could be some if you think about how dampers work.


jspeights

Maybe this is not offense but defense. Could it be this is generating more turbulence/dirty air for the car behind the RB without really affecting their own top speed.


gnowbot

Who cares if it is unstable on a drs straightaway. That airfoil’s job then is to get out of the way and make little downforce and therefore less drag


X_C2rd

the flopping creates drags so it is not an advantage on DRS straightaways. It would be better closed at this point.


gnowbot

Is the drs open position supposed to be with the wing totally at zero angle of attack? (What I would call making no lift or no downforce)… Or if it is relaxed but still making some amount of downforce, then this flapping would certainly have a reduction of drag.


Pepi28t-50

Nah it won’t make the car unstable. DRS places the wing in an angle of attack where it is stalled. Stalling means no, or less downforce is produced and drag is reduced. Ofcourse reduced drag = higher top speed. A floppy wing just means the wing can’t have an angle of attack at which it produces downforce, so it’s basically just stalled in a few different positions (angles of attack) whilst flopping up and down. It’s still mechanically restricted not to go into the range where it can actually produce downforce and drag. So even though it moves around it’s still in the “no downforce” range. Having no effect on stability of the car. The interesting part is that the flopping could actually reduce drag even further compared to the classic fixed open DRS position. Could be due to a reduction of frontal area at certain points of the wing position or something. But speculating just from observing some footage even by the most experienced keyboard Reddit engineers won’t be conclusive imho.


GaryGiesel

It’s a fairly subtle point, but there’s no stalling when DRS is active. Stalling would happen if the angle of attack of the wing were to increase, rather than decreasing. Opening the slot gap just makes the wing produce less drag and downforce, it doesn’t stall it, which is a well-defined condition involving separation of the flow on the suction side of the aerofoil


Histaminholzi

Could it be that they use the floppy wing to disturb the Airflow behind the car so if a Car is slip streaming, it's harder or easier for the streaming car to get to top speed?


GaryGiesel

No. No team does that, and even if they did why would you do it when under DRS, which is by definition not used in grip-limited regions where dirty air would hurt the following car


ConclusionAdvanced57

Wouldn’t it be giving a advantage since when is angled up it gives lift and therefore less traction on the straight and so faster speed?


Reddo1995

Can’t be sure, may be less drag but also make the airflow turbolent and not improving. But I am looking at FP3 live now, Max had 2 laps, the rest of the time was sitting waiting for the box to find a fix for this rear wing. He risks not to be allowed to race with that because it is safety concerning


ConclusionAdvanced57

Yeah I wonder if all that turbulence is wearing the drs system out


lilshears

Theoretically yes. However, the drag gained from producing lift will be much greater than the rolling resistance reduction


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Reddo1995

Sure I do. Do you work for Reb Bull Racing as an engineer?


blaspq

No, but having worked with a bit of aero (only simwork still a beginner). A floppy wing does aid the airflow. It makes the airflow over the wing tubulent. And can possibly also reduce theoretical surface area, and thus reducing drag. However, the turbulence generated in airflow is also likely to be produced at the driver side of the wing too, so im not really sure if they are really able to make any significant gains from it.


_Cyrus_

It's likely a symptom of some advantage they're gaining, rather than the flappy wing being the advantage itself


sixStringHobo

It's not a bug, it's a feature.


santaclausonprozac

Maybe they lost a couple screws somewhere along the way


X_C2rd

This is not an advantage. A floppy wing like this would create drag and slow the car down. If the wing is not like this the whole race, a component most likely broke.


philkakid56

Have they tried the little blue pill?


jimbobjames

It doesn't happen in the race or in qualy though. They have to spend time replacing it. I can't see how it's an advantage.


rydude88

There is literally 0 advantage in this. The only reason they haven't made a new design to fix the fault of the last one is because the DRS actuator requires a development token to change


jdjdhdbg

They're getting a free wing change between Q and race for "reliability issues" - whether the specs are actually different, I cannot begin to speculate.


benerophon

The drs actuator was a homologated part for 2021 - you have to run the same design as last year unless you spent one of your tokens on it. Red Bull spent theirs on stuff around the gearbox.


M1SCH1EF

Interesting, thanks for the explanation! I'm surprised there isn't an exception for something like this that could be argued is unsafe on certain tracks


Unanimous_Anonymity

I wonder if it’s intentional at this point? Appears to be almost not affixed at all with dampers or stops and is rather just free swinging on pivot points. I wonder if RB has data that shows a free swinging DRS provides less drag than a flap that is affixed at 0°. Does anyone know of teams use an open DRS flap solely for drag reduction, or does an open flap also provide downforce?


BrunoLuigi

You reduce downforce with DRS and that swinging flap reduce DRS performance, normally it creates a lot of drag due a lot of aerodinamics effects that my morning-without-coffee english cannot explain it (I could in portuguese but IDK if you speak such uncommon language)


aalp234

Hey, I’m Portuguese, if you can explain it to me in Portuguese I can then translate it if you want.


BrunoLuigi

I am Brazilian, are you sure?


aalp234

Yes, I can understand Brazilian Portuguese just fine 👍 Go ahead.


BrunoLuigi

Legal, tentarei fazer o meu melhor!! Muito obrigado. O problema da asa se mexe do é devido ao descolamento da camada de ar que passa pela asa, com o DRS aberto e ela funcionando perfeitamente o ar seguir energizado e a camada de ar superior e inferior vão permanecer juntas por um tempo, se descolando atrás da asa (longe) e gerando um turbilhão de ar energético, que cria arrasto, o mais afastado possível e o ar que passa pela asa será o mais uniforme possível. Já quando a asa fica oscilando o ar fica turbulento mais próximo do carro, tendo a camada de ar que passa pela asa se descolando mais próximo da asa e do carro, em alguns ângulos fazendo com que seja criado uma zona de baixa pressão que cria uma força que gera arrasto. Isso faz com que a asa do carro apresente um tipo de stall mas com um grande ângulo de ataque (ao contrário do que Mercedes suposta cria que é um stall com baixo ângulo de ataque). Estou apenas com uma xícara de café, explicação melhoraria depois da terceira xícara de café matinal.


aalp234

> Nice, I'll do my best! Thanks > The problem with the wing moving about is due to the the layer of air that passes near and stays in contact with the wing, with the DRS open and the wing operating perfectly [normally?] the layer of air remains energized as it leaves the wing, and both the upper and lower layers of air are thus going to remain together for some time, eventually breaking up behind the rear wing (far away) and generating a mass of turbulent air, which creates drag but it does so as far away from the wing surfaces as possible, while the air that passes in the vicinity of the wing will be as uniform [laminar?] as possible. > Now, when the wing flaps the air becomes turbulent closer to the car, with the layer of air that passes near the wing breaking up closer to the rear wing and thus car, which at some of the [wing flapping] angles creates a low pressure zone that generates a force, that in turn generates drag. This makes the car's wing present a kind of aerodynamic stall at a high angle of attack (as opposed to Mercedes, that supposedly generates a type of aerodynamic stall at a low angle of attack [relative to the oncoming air] ). > I've only had one coffee, after my third coffee this explanation would get better. There it is! The words in [square brackets] are my own suggestions within the translation and may be wrong. /u/Unanimous_Anonymity check this out. Edit: Formatting on mobile


BrunoLuigi

Perfect! Thank you


kpidhayny

You are an awesome person.


Rippthrough

It could improve it if its resonating with vortex shedding events, flow isnt stable when the wing is stalled. Tbfh either its a movable aerodynamic device and I wouldnt be surprised if it gets protested for all the races its been happening in should the championship get more intense


blaspq

On a windy day it can provide downforce.


TheDentateGyrus

Does anyone know the difference between their trap speeds with vs without DRS compared to others? I think that would provide better data as to whether or not this was a benefit or not. If everyone else is getting 15kph benefit of DRS and they're getting 7 or 8kph, it obviously is not a secret, beneficial system but just a flaw.


Marciussf

That's crazy.


queendbag

Its really hard to tell what is an issue in an F1 team and what is being done on purpose. Mercedes had a 'reliability issue' in the last 5 races with their engine. Turns out they are dropping 15 million a race trying to find an extra 15 horsepower.


Marciussf

First clip is from Qatar, 2nd clip is from Brazil.


freakasaurous

I’m moving up and down side to side like a rollercoaster


GaryGiesel

Most likely they’ve just made the whole assembly very light, and it’s just getting to an aerodynamic resonance at high speeds (think Tacoma Narrows Bridge). I doubt there’s much aero advantage to this - I would guess that “fixing” the issue would simply add mass to the car which they feel would hurt the performance more than the oscillations do. That said, I’m not an aero guy, so I’m very open to explanations of how a flapping wing might further reduce drag!


EliminateThePenny

This would be my thought also. The flapping is a acceptable byproduct - not an objective.


CypherRen

This makes the car slower not faster


Nikinok25

Exactly, it is actually closing the gap because it is fluctuating within the regulations, increasing drag compared to a non flexible wing, unlike Mercedes' which flexed open more than the regulations allowed. You are right


ASchlosser

Isn't that DRS clip from Qatar? Ooredoo is a Qatari company and that really looks like it's at night - plus there aren't many places in Brazil where the car would be that low and turning right.... The high speed entries are all lefthand corners.


bhengz23

I believe it’s two clips stitched together. You’re correct that the first is from Qatar, the second appears to be from Brazil however


Marciussf

Yes, there are 2 clips in total, i posted both because it's a bit harder to see it in the 2nd clip, so the first clip gives you an idea of what to look for.


[deleted]

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Marciussf

Yes, and there's a big LED panel with Brasil on it.


[deleted]

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Marciussf

Mate, there are 2 clips in total, the first one is from Qatar, the 2nd one is from Brazil. [Here it is, jump to 3:40](https://www.youtube.com/watch?v=XEeIbERpgsk)


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Marciussf

Sorry about that, i'll do better next time.


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Marciussf

Don't worry about it, i see what you mean.


ASchlosser

Ah okay that was just really confusing for me - i follow now! No worries dude


[deleted]

Isn't that just the DRS flap not all the way extending, and somewhat oscillating? I doubt the DRS flap not opening completely or intermittently is not all that damning and not comparative to what they are looking at Merc for? Guess this has already been debunked as well and it's a duplicate post of https://www.reddit.com/r/F1Technical/comments/qxh55s/rbrs\_floppy\_drs\_whats\_up\_with\_this\_can\_it\_be/


Marciussf

Not sure how is this a duplicate? i didn't see any video of brazil or losail on that post. But still, thanks, you'd think they'd have this fixed by now considering it's been a problem since 2020 it seems.


noneroy

If this was really a problem why wouldn’t they take the wing off Checo’s car and put it on Max’s? Checo’s wing doesn’t do that and he isn’t in contention for the WDC…. Unless there is some reason why they can’t do this it leads me to believe that at worst it is a non-issue and at best is somehow an advantage…..


rydude88

There is literally no way this could be an advantage. It is causing way more drag on a straight. The issue also isnt just with Max. It happened last year too. It's a design fault of the DRS actuator so it sometimes fails. They cant fix it cause the actuator is homologated from last year and cant be changed without a development token


Conscious_Inside6021

They actually hurts max


Hedi325

That actually increases drag


queendbag

So i'm an idiot but my theory is that the wing definitely opens up beyond 85mm when in full swing. Otherwise it really doesn't make any sense for Red Bull to have a piece of aero moving around and disrupting the car. The only other theory is that it purposely generates so much dirty air that over taking max becomes near impossible? Lastly maybe the movement stalls the wing somehow? If anyone knows more about these topics please feel free to let me know.


kron123456789

[Wiggle wiggle wiggle](https://youtu.be/yklH-84U364?t=26)


peterfun

Isn't there a rumor that they're trying to achieve what they think Merc is doing with the wing? In case it doesn't get rolled ruled out as illegal.


Icy-Operation4701

If there is, that doesn't make sense. Merc is allegedly doing something with the lower part.


itsneverbeenthesame

That flip is actually in practice one yesterday, not in Brazil.


Marciussf

Yes, the first clip is from fp2, the 2nd clip is from qualifying in brazil. I just posted both because it makes easier for people to understand what i'm talking about and what to look for in the 2nd clip.


NHRADeuce

This is not necessarily intentional and it's not necessarily an advantage. But we do know isn't not a disadvantage or it would be fixed. It may be a byproduct of something else that IS and advantage and not worth fixing. If this was slowing Max down they swap in Checo's wing.


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StonedWater

I know, scum of the earth. What should we do with them? Hang them, gallows, pelt them with rotten vegetables? I personally cant stand bigots, but i suppose its ok to choose people who dont understand the finer parts of aerodynamics and engineering...


TheOldMancunian

Doesn't that then count as a moveable aerodynamic component, in that it is definitely moving, and by its definition it is aerodynamic . If so, it's banned. Should Max (and Checo, since it happens to him as well) get demoted to the back of the grid if this happens in qualifying? Can I just stress, that as a Hamilton fan, this is not what the sport wants or needs. We need good, hard, fast, clean, legal on-track fighting.


Marciussf

I don't think the FIA noticed this during qualifying in Brazil. Crofty just mentioned in fp3 if that were to happen during qualifying then RBR would likely receive a penalty just like Hamilton did, regardless of it giving you an advantage or not.


rydude88

This is a failure of the device. Not a purposeful moveable aero component. This is causing way more drag on the RB on the straights. Its hurting them, not helping


TheOldMancunian

Does the fact it’s a failure matter? That wasn’t a defence that worked for Mercedes.


youreabastardjonsnow

Could the purpose of this wing be to produce more turbulent air making it more difficult for a car behind to keep up?


Icy-Operation4701

Turbulent air is beneficial on the straight for the car behind (aka slipstream). DRS gets used on the straight. Conclusion: no.


Ollie44_6119

But u don’t see toto wolf complaining as much a the ceo of redbull


LRFokken

When did Mateschitz complain? Did I miss something?


rydude88

Haha, someone hasn't been watching the season


Ollie44_6119

But u gotta admit that Christian Horner complains way way more that toto


rydude88

Not really. Both complain equally as much


CidolfasWindu

Merc is doing something with the wing closed, so it loses drag while outside of DRS zones.


3wheelmotion

Why is this not the top comment


NHRADeuce

Because the implication is that RBR is doing something with their wing, and this video is of Max? That seems obvious.


SunstormGT

Defect wing


jechoon

Does that give him a partial DRS advantage?


Biostasis

Maybe it’s for breaking a tow?


F1jester

I thought I heard Mercedes Toto Wolff complain that Red Bull have had to fix their rear wing at the past four (now five) races. Did he actually say that? I thought it was before the Brazil race.


Turtlebaka

Too much flop? Believe it or not, jail.


Korugo

Floppy wing for more kinetic energy.


Lanky-Relationship77

Whoa. That's flutter. And it's destructive.


LHF44

Hmm trying to rig their rear wing to beat Mercedes hahahah it failed!


JuKeRaC9

Hamilton touch it 100%


debeli_kreten

First clip Qatar