Kinks vs turns

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raymondu999
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Joined: 04 Feb 2010, 07:31

Kinks vs turns

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Hey all. On the preview quotes for Turkey a while back, a driver was talking about Turn 8, and how it was a proper turn, not kinks. When does the line blur between a kink and a fast corner?

Another thing is, for "kinks" how would the f-duct be deployed? Activated, or not? For example, the turn 13 kink at Turkey in the straight, and say, 130R... would they deploy the f-duct, or keep it offline?
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marcush.
marcush.
159
Joined: 09 Mar 2004, 16:55

Re: Kinks vs turns

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High speed oversteer is something to avoid...but would a F1 car show high speed oversteer with F-duct ?

assuming the front wing is unaffected by f-duct operation it is mainly the rear wing that sheds df with this .But again, is the the front wing that effective at high speeds ,compared to the rear wing? is it a linear correlation or does the rear wing gain advantage running in cleaner air ,having more span and chord so the balance would tip towards high speed U/s anyways and you just compensate a little by deploying the fduct?
I feel this might be one of the areas where a very good arrangement could reap a lot of benefit or stuck you in the wall.

DaveKillens
DaveKillens
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Joined: 20 Jan 2005, 04:02

Re: Kinks vs turns

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First part of the question is how drivers consider Turkey turn 8 as one long corner rather than a set of separate and distinct kinks. Posted below is a map of the turn, the grey is the track surface and the preferred line is in white.

Image

As shown on the map, turn 8 is a series of four distinct shallow angle kinks. But due to the fact of corner location and width of the track, the drivers are able to negotiate it in one long sweeping corner.

It appears right now that the famous f-duct can be in just one of two states,on or off, and no intermediate levels of adjustment. It's on, or it's off. And when it's activated, the rear wing loses downforce and drag. The loss of drag was the design goal, but the loss of downforce was the penalty it paid.

Bottom line, if you activate the f-duct the rear wing loses some of it's downforce.

In a high speed corner such as 130R, if the rear wing wasn't delivering the downforce required, the rear wheels lose traction, the car comes around and you have a very nasty high speed crash.
Racing should be decided on the track, not the court room.

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ISLAMATRON
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Joined: 01 Oct 2008, 18:29

Re: Kinks vs turns

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kinks are easy flat, yes what you refer to as Turkey turn 13, but you actually mean turn 11, also refered to as faux rouge is easy flat even with f-duct "on" reducing downforce & drag.

for turn 8(a,b,c,&d) you almost cannot get enough downforce, so the fduct would not be activated there