RED BULL EX­PER­I­MEN­TAL FLOOR

Autosport (UK) - - MEXICAN GP TECH - GARY ANDERSON

Red Bull fol­lowed Fer­rari’s lead and added some small ver­ti­cal turn­ing vanes on the top outer sur­face of its un­der­floor. Like Fer­rari, it was tested only on Fri­day by way of an ex­per­i­ment.

These vanes are a lit­tle con­fus­ing. You want the air­flow on the top sur­face of the floor to be pulled out through the lon­gi­tu­di­nal and an­gled slots on the outer edge of the floor, and then you also try to turn that flow over the top sur­face with these small turn­ing vanes. Yes, they can help pre­pare the flow di­rec­tion, but they also block off some of the slots and will re­duce the amount of flow that goes through the slots.

I’m sure they will reap­pear, as both Fer­rari and Red Bull get on top of what they want to get from them. But it could also be just ini­tial test­ing for 2019, when the barge­board trail­ing-edge vor­tices will have much less ef­fect on how the outer floor seal­ing is achieved.

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