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GP Week : Issue 120
Technical Update: Canadian GP The Circuit Gilles Villeneuve is all about stright line speed and braking, as GPWEEK Technical Editor Paolo Filisetti explains Montreal is known as a track where aerodynamics doesn’t play a particularly relevant role. Rather, it is much more a track where the overall balance of the car is more important, as well as the efficiency of the brakes, which must be guaranteed to tough out the race, via increased brake cooling capabilities. This due to the particular layout of the circuit, where heavy braking points are abundant and there are not huge intervals between one point and the following one. For these reasons Ferrari and all the teams tried to increase both the brake cooling inlet areas, and tried to maximise the dissipation of the heat generated under braking. Apart from that, other teams, notably Renault and Williams, introduced a new low-downforce rear wing, featuring a sinuous main profile, useful on the long back straight. Montreal, a track where the aero efficiency is not exactly paramount, would seem to suit Ferrari, thanks also to a very good engine. Ferrari brought a revised font wing to Montreal, sporting a single wide flap, featuring a deep diagonal cut both close to the wing pillars and on the other side close to the endplate. This kind of flap guarantees a good amount of ‘efficient’ down-force, important in the twisty section of the track, but as well is not too much costly in terms of drag in the two long straights of this circuit. Huge attention was paid by Ferrari to bringing modified brakes for this race. In particular the discs featured wider radial ventilation holes, notably formed by an horizontal series of smaller holes placed one beside the other. At the front, Ferrari sported modified drums. In detail they were cut so as to open them around the discs, opening increased air flow to the discs. A similar solution was adopted by McLaren. Williams and Renault introduced an interesting new version of their rear wings. Both just used them in practice, but the Renault one was particularly interesting for its double sinuosity in the middle compared to the single one of the Williams, whose function was to generate the slightest possible drag as well as less downforce, to try and create a speed advantage on the long back straight. For your daily dose of Formula 1 news ... 12