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GP Week : Issue 93
Technical Update: Hungarian GP High-downforce set-ups were rolled out again, but all anyone wanted to talk about was the Red Bull front wing. GPWEEK Tech Editor Paulo Filisetti explains With just a week between races, there was little likelihood of signi cant technical change, but Hungary highlights team's high-downforce set-ups -- and of course there was ongoing discussion over the Red Bull front wing. At the same time, Force India introduced its version of the blown di user, even if it discarded the solution after the Friday practice. Toro Rosso introduced a revised front wing, featuring two vertical fences protruding downwards attached to the nose cone, to nd additional downforce. We focus our attention primarily on the controversial Red Bull front wing and on the Renault rear one as they were the most discussed technical subject of the weekend, the latter the rst big evolution of the rear wing, after an endless series of evolutions of the front one in the previous races. Red Bull front wing exibility Most of the technical rumors in the Budapest paddock, were about an alleged illegality or uncertainty over the compliance to the rules of the red Bull front wing. The clari cation lodged to the FIA by McLaren and Mercedes, was about the exibility of the front wing assembly of the RB 6. In particular it was clearly visible from TV vision and on-board footage that the lower edge of the endplates were dramatically closer to the ground, eventually touching, in this way able to create a sort of aerodynamic seal, capable of increasing the e ciency of the front wing and also positively a ecting the bottom of the car. The other competitors considered it a breach at least of the spirit of the rules, and have asked for clari cation to the FIA before embarking in a costly development of their own cars in this respect. It is important to underline that the Red Bull front wing passed the existing static exibility test, so it was deemed legal by the scrutineers. Ferrari's front wing was also criticized by the other competitors but, as with the Red Bull one, it passed the exibility test. The exibility appears to come from a clever use of carbon- bre, laid in one direction only at the critical point, rather than in the normal, stronger, criss-cross pattern, reducing the sti ness under high load. Renault rear wing development Renault introduced a new rear wing especially designed for high downforce. The wing features a deeply V-shape in the middle, main pro le and the ap divided in two sections by means of a big passing hole. The elements of the wing in this way (as on the Mercedes and on the McLaren) works as if it would be constituted of three separate elements. F1 NEWS >> 13