Autosport (UK) - - F1 SEASON REVIEW | TECH FOCUS -

Sauber ran turn­ing vanes on the up­per part of the front wish­bone, a con­cept later ap­plied by

Mercedes to its own front sus­pen­sion. What you want to do here is pull air into the low-pres­sure area be­hind the front tyre be­cause it’s a very tur­bu­lent area, and the more you fill up that hole cre­ated by the tyre, the less work the parts in front of the side­pod have to do. The brake ducts also work to­wards this. Also, when the tyre is ro­tat­ing and the air­flow is nav­i­gat­ing it, you cre­ate a bit of lift on the tyre’s up­per sur­face, so this also helps to elim­i­nate some of that nega­tive. For this to be le­gal, you have to com­ply with the reg­u­la­tion re­quir­ing an as­pect ra­tio of no greater than 3.5:1 in sus­pen­sion com­po­nents.

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