Reducing the drag of a two element wing through stall

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manchild
manchild
12
Joined: 03 Jun 2005, 10:54

Re: Vodafone Mclaren Mercedes MP4/25

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Let them have it. As far as it matters Bahrain GP, MP4/25 is a tyre-eating monster enjoying both compounds (especially softs).

RacingManiac
RacingManiac
9
Joined: 22 Nov 2004, 02:29

Re: Vodafone Mclaren Mercedes MP4/25

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manchild wrote:Let them have it. As far as it matters Bahrain GP, MP4/25 is a tyre-eating monster enjoying both compounds (especially softs).
Both car or just Hamilton? That might be just Lewis being Lewis....:D

6kph on the straight won't equate to 2-3 tenth though will it?

segedunum
segedunum
0
Joined: 03 Apr 2007, 13:49

Re: McLaren MP4/25 Air Intake

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hybridreload wrote:but the fia stated the movable part cannot be a part (sprung or not) of the car. The mass damper was a sprung part of the car.
It's the opposite. Any moveable device has to be a sprung part of the car. The argument was that the mass damper wasn't. That's a rather different set of regulations, mainly because the mass damper wasn't really an aerodynamic device. You can't have a moveable aerodynamic device on the car, and the regulations are actually pretty clear. I don't know what people do now.
A driver can already alter the aero characteristic of the car by moving/turning his head, he also alters the airflow when turning the wheels as his hands pop over the cockpit rim.
Hmmmm, that's a very weak argument in this case. What we have is a driver operating something that clearly changes the car aerodynamically and has one purpose.

segedunum
segedunum
0
Joined: 03 Apr 2007, 13:49

Re: McLaren MP4/25 Air Intake

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Just_a_fan wrote:The driver isn't a device nor is he part of the car.
That's not the issue. What we have as a whole here is a moveable aerodynamic device that affects the car - no ifs no buts - regardless of whether the driver is involved in the process at some point. Assuming of course that this is driver operated, but whatever, it still falls under the same set of regulations.
The driver adjusts the front wheels and they probably have the biggest aero effect on the car. Perhaps we should ban steerable wheels... :lol:
Because that's all specifically allowed by the regulations. This........falls outside of it because it is described and excluded.

jason.parker.86
jason.parker.86
1
Joined: 29 Mar 2009, 21:57

Re: Vodafone Mclaren Mercedes MP4/25

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Reason no one will take this any further is because they are 50% there in terms of adapting their own version. Let the FIA and Stewarts get on with their real job of finding illegal car parts (Such as Ferraris wheel trims ...)

McLaren to be seem to have turned a leaf... they seem to be alot more "experimental" and less cautious... Roll on 2010

segedunum
segedunum
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Joined: 03 Apr 2007, 13:49

Re: McLaren MP4/25 Air Intake

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siskue2005 wrote:why do people have problems understanding that Driver cannot be considered as a movable aero device.....
The driver is not the issue - it's the system as a whole. I don't know why people are focusing on the driver. As a whole, this system with the driver in the middle, is a system that acts as an aerodynamic device making active decisions.

But, I suppose the FIA just didn't want any more controversy when it came down to it..................

thestig84
thestig84
10
Joined: 19 Nov 2009, 13:09

Re: Vodafone Mclaren Mercedes MP4/25

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manchild wrote:Let them have it. As far as it matters Bahrain GP, MP4/25 is a tyre-eating monster enjoying both compounds (especially softs).
Is that just based on the radio clip from Hamilton? Ive seen nothing else to suggest this. Team quotes seem positive and Vettel doesnt think they are looking too bad...

"I would have loved to run a lot more and get more laps and more data, but at this stage I think Ferrari and McLaren look extremely competitive."

Just_a_fan
Just_a_fan
593
Joined: 31 Jan 2010, 20:37

Re: McLaren MP4/25 Air Intake

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segedunum wrote:
Just_a_fan wrote:The driver isn't a device nor is he part of the car.
That's not the issue. What we have as a whole here is a moveable aerodynamic device that affects the car - no ifs no buts - regardless of whether the driver is involved in the process at some point. Assuming of course that this is driver operated, but whatever, it still falls under the same set of regulations.
The FIA / stewards disagree with you on that though. And it's their game so I guess you'll just have to find something else to worry about... :wink:
If you are more fortunate than others, build a larger table not a taller fence.

segedunum
segedunum
0
Joined: 03 Apr 2007, 13:49

Re: Driver activated aerodynamics

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Raptor22 wrote:This whole thing is ridiculous.

the driver activates a system that changes the cars rear wing aerodynamics. It's illegal, pure and simple.
I simply have to agree. People are focusing on the driver and thinking they can make exceptions, but you can't. The system as a whole is designed to change the aerodynamics and make active decisions about when to do so. Whether a driver is in the middle of that and whether there are no other moving parts is irrelevant. The whole system is a moveable and changeable aerodynamic device.

If the driver is not involved and there is simply a non-moving part where the flow changes above a certain speed then that's more difficult and could be deemed to be legal. However, making that work under the right conditions is extremely difficult and possibly dangerous.
The ducted air is used for a purpose other than cooling, the moving air is used to disrupt the flow (apparently) therefore that air stream is a movable device and is illegal.
It's very clear that this is more than just for cooling. If it was for cooling then the outlet would stop at the cockpit. It doesn't. There is not even very much grey about this at all.

At least with the double diffuser shenanigans that was a set of loopholes in the regulations. This has been covered by the regulations for years.

Just_a_fan
Just_a_fan
593
Joined: 31 Jan 2010, 20:37

Re: Driver activated aerodynamics

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Raptor22 wrote:This whole thing is ridiculous.

the driver activates a system that changes the cars rear wing aerodynamics. It's illegal, pure and simple.

The ducted air is used for a purpose other than cooling, the moving air is used to disrupt the flow (apparently) therefore that air stream is a movable device and is illegal.
It is not illegal. If it were, the FIA/stewards would have refused McLaren permission to race the system this weekend.

It may not fit with your reading of the regulations, and that is fine - we are each allowed our opinions on these things. But at the current moment in time the system is legal because the final arbitors of legality at the race track - the stewards - have said so.

A "higher court", i.e. the WMSC, may later overturn the stewards' decision but until that happens the system is legal.

It is legal.
Get over it.
If you are more fortunate than others, build a larger table not a taller fence.

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Sebp
15
Joined: 09 Mar 2010, 22:52
Location: Surrounded

Re: Driver activated aerodynamics

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Fact is, the system was declared legal.

So either it is legal within the spirit of the rules, meaning the driver does not influence the aero at all. For me that is still a possibility.

Or the FIA inspectors including Charlie Whiting don't know the rules.

The third possible explanation for its' legality would be that the officials are corrupt and favour McLaren :twisted:

Let's just wait till we see pictures of the 25's footwell.

manchild
manchild
12
Joined: 03 Jun 2005, 10:54

Re: Vodafone Mclaren Mercedes MP4/25

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thestig84 wrote:
manchild wrote:Let them have it. As far as it matters Bahrain GP, MP4/25 is a tyre-eating monster enjoying both compounds (especially softs).
Is that just based on the radio clip from Hamilton? Ive seen nothing else to suggest this.
ESPNF1 Staff March 12, 2010 wrote: McLaren pair struggling with tyre wear

McLaren drivers Jenson Button and Lewis Hamilton are both hoping to revise their driving styles after they experienced excessive rear tyre wear during free practice.

The high temperatures in Bahrain combined with the heavy fuel loads needed to start the race are putting extra strain on the Bridgestone rubber. Hamilton said the problem was immediately obvious but is confident he will find a way to drive around the problem.

"Out on track, it's been very hot so tyre degradation of both compounds has been pretty high", he said. "But I think the degradation is something we can handle; you build it into your driving style and moderate the approach to each lap. Still, it's difficult to know what lap time to target when you're on a long run. The less you push at the beginning of a stint, the more there is left to push at the end. But it's difficult to know exactly, and we're still trying to understand that."

Button had similar complaints ahead of the first qualifying session on Saturday and said that the new section of the track, added for this year's grand prix, wasn't helping the problem.

"Today's shown us that looking after the rear tyres is very difficult here, especially on the softer compound," Button said. "So you find yourself driving with a lot of oversteer through most of the stint. The new section of track is very bumpy. Turns Six and Seven are particularly tough because you're trying to brake as late as you can, and, if you do that, the car hits the ground, you bounce all over the place and it's very difficult to see where you're going. So you have to brake earlier, and more gently, so the front doesn't dip through that part of the corner - and that positions you better for the next turn."

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LegendaryM
3
Joined: 11 May 2009, 21:56

Re: Vodafone Mclaren Mercedes MP4/25

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does the upper part of the airbox also direct air to the rear wing?
MRVC: Tolo Racing

thestig84
thestig84
10
Joined: 19 Nov 2009, 13:09

Re: Vodafone Mclaren Mercedes MP4/25

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djones wrote:for cost cutting alone this should have been banned.

Like the lotus bloke said - it now just opens the door to a load of development in that area and you have to do it or you will be left behind.
Cost cutting!?!! I dont think it cost Mclaren much to come up with the device! It shouldnt cost anything like DDD development costs, Only £££ if teams need massive work to incorporate it. Why should Mclaren suffer if some teams will find it hard or costly to incorporate....unlucky they should have thought of it. This is F1, for me and many people on here a large reason for the love of sport is technical aspect and the innovation. These days there is so little innovation, we see a small, simple cleaver idea and sore loosers like Mike Gascoyne are shouting mouths of to ban it. Sour grapes...I think Lotus have other worries to devote effort to!

Im sick of all this making it equal rubbish. If Man U think of a good way of taking free kicks but other teams cant do it or afford players to do it they should ban it?!

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Ciro Pabón
106
Joined: 11 May 2005, 00:31

Re: McLaren MP4/25 Air Intake

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Shaddock wrote:Can a mod move this thread back to the MP4/25 section where it now BELONGS!
Shaddock, this thread was "drowning" the MP4/25 one. As you can see, we have had 30 pages of posts on this subject.

Actually, when I split the threads, in the last 25 pages of MP4/25 thread there were 2 posts (I repeat: two posts!) on other parts of the car and 400 on the air intake. I think that if there ever were an issue that deserved its own thread it would be this one. Thanks for your suggestion, but I think I did the right thing.
Ciro