Mclaren Mercedes MP4-25

[747heavy]

Thanks deus - will do

[raymondu999]

I was under the impression that most teams used a loophole that within the 15cm exclusion zone, they make a slit, that expands and becomes a full-width slot in the back of the wing.

[feynman]

Each wing shown in that diagram is clearly two elements.
The black line is the f-duct slot, and there is a ridge on the the left hand wing. That's not daylight, that's a highlight. That's why it's light gray, not the bright daylight white.

(You can kinda tell it's only two elements, 'cos the illustrator drew it from a photo of the racecar, and the racecar was scrutineered, ipso facto, two elements).


Hungary 2010

[ringo]

It's 2 elements. One is airfoil shaped, the other one with the slot is like a horse shoe shape; if you can visualize what i am saying.

The center 15cm is 3 elements, but the slot projected laterally into the upper element intersects it in a way that the upper element is still one piece, only shaped differently.

[segedunum]

What I don't get is why didn't McLaren reduce Jenson's downforce level slightly and get a 340k top speed as most others were.

I don't think the system works like that. People have asked similar question in races before.

[wrcsti]

What I don't get is why didn't McLaren reduce Jenson's downforce level slightly and get a 340k top speed as most others were.

I don't think the system works like that. People have asked similar question in races before.

It would likely not be as effective. a blown teatray wing would likely se no substantial benefit to being blown unless you blow it to increase downforce in the turns.

[volarchico]

But now you get back to the question of why was Ferrari and Renault able to run smaller "Monza" type wings and still effectively implement an f-duct? That's what I think raymondu999 was referring to. Not necessarily a "tea-tray" but something in between.

[raymondu999]

Yeap. That's the one I wanted

[i70q7m7ghw]

The smaller the wing the less benefit you get from an F-duct. The other teams were running an f-duct on their Monza wings but it wasn't given them much extra, probably only marginal to not running the f-duct.

I think McLaren went in to the weekend fully expecting not to run the F-duct so they didn't develop any kind of Monza package to incorporate it. It's likely their simulations and tunnel work showed it wouldn't give them any benefit. When they wanted to try it anyway they only had the Spa setup so that's what they ran.

From what I can see it doesn't look like the f-duct wing is adjustable, so to run it with lower downforce you would need to manufacture a new wing to incorporate the new angle. It's hard to say without seeing any decent pictures.

[marcush.]

unfortunatelly we have not and will not see the morph of a teattray and the f-duct wing as Mclaren has it this year...I´m quite positive this would have worked

[raymondu999]

They say they can now master high downforce: http://www.f1fanatic.co.uk/2010/09/22/m ... orce-pace/

[zgred]

[segedunum]

They say they can now master high downforce: http://www.f1fanatic.co.uk/2010/09/22/m ... orce-pace/

[zgred]

That is really ugly.

EDIT: another angle.

[murtoidf1]

is that a non switchable f duct??

Also, that front wing hasnt been painted!