Renault Sport F1 R.S. 18

[mmred]

Hy guys, it's OT but short.

What is 1 point of DF?
1 out of 100, so variable on every car?

Or is 1 point a clear definition?

I found nothing in search.

I seem to remember someone (Paddy Lowe possibly) saying for them it mean 0.01Cl.

And I think this cars with this new regulations are around 4.5 - 5 Cl it's less than 0.25% so I don't think it's much. Maybe under 0.01 sec?

1 point is 0,01 W ( Cl is the downforce and it is a ratio of the weight of the plane/car ) so 1 point is 7kg more load on the tyres

[estormell]

1 point is 0,01 W ( Cl is the downforce and it is a ratio of the weight of the plane/car ) so 1 point is 7kg more load on the tyres

At which speed?

[mmred]

1 point is 0,01 W ( Cl is the downforce and it is a ratio of the weight of the plane/car ) so 1 point is 7kg more load on the tyres

At which speed?

these are plane equations
so it s not the speed that is set but the weight
then all parameters are calculated in cruise configuration so given that lift equates weight, and so you obtain a proper Cl and Cd
and any change in Cl and Cd influences the speed ( not the opposite )

of course for car is different, cause you dont have to optimize fuel but optimize speed ( performance )
that s why the whole Cl and Cd paramaters have to ensure best track performance ( so even more drag and even less efficency can be better if you obtain much more load at lowest speed )

basically you maximize load at slow and medium speeds and efficiency at fast speeds
they probably have different cars configuration to optimize that interact with each other or choose a reference speed to optimze the whole ( i dont know cause i never worked for a sport team )

[estormell]

I see, makes more sense for aerospace.
For cars, a definition downforce points based on weight sounds meaningless to me. But then the Cl is not very useful either, unless a reference area is provided.

If I had to bet I would say it's a centesimal part of Cl*A, so it can be directly translated to downforce given the speed and the air properties. But I have no idea honestly.

[mmred]

I see, makes more sense for aerospace.
For cars, a definition downforce points based on weight sounds meaningless to me. But then the Cl is not very useful either, unless a reference area is provided.

If I had to bet I would say it's a centesimal part of Cl*A, so it can be directly translated to downforce given the speed and the air properties. But I have no idea honestly.

see how much commentators focus on efficiency ( like f1 is a plane ) and cl and cd i bet those paramaters arent even computed in 3d simulations for cars ( they dont make sense for planes too, they are merely used to compute basic plane behaviour in ideal flight maneuvers )

so it s a media thing

but surely if you try to improve some 2d coefficient it can have some benefit as a general parameter in a special configuration

[GPR-A duplicate2]

A Wing under the airbox!

[media]https://twitter.com/AlbertFabrega/statu ... 3291288576[/media]

[Thunder]

Looks the same as last Week on first glance.

[Blackout]

Yes + the big a** fairing on the drivers helmet.

[Hail22]

[Morteza]

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So theere is a hole/slit just behind the floors turning vane

[ScrewCaptain27]

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