Sauber excluded from Australian GP for infringement

Sauber's Sergio Perez and Kamui Kobayashi have been disqualified from Australian Grand Prix

By Gareth Llewellyn
sauber
The Sauber's C30 is said to have breached two technical regulations Photo: Sauber F1

sauber

Sauber’s Sergio Perez and Kamui Kobayashi have been disqualified from the Australian Grand Prix after their cars were found to breach technical regulations.

The duo, who finished seventh and eighth in Melbourne, were excluded from the results following post-race checks on the concave radius of sections of the three rear wing elements that are in contact with the external air stream.

The same checks were made on a number of cars including those of Red Bull, McLaren, Ferrari, as well as Renault’s Vitaly Petrov and Toro Rosso’s Sebastien Buemi, but they all passed.

Melbourne stewards decided that both C30s were in breach of technical regulations 3.10.1 and 3.10.2 which were introduced this year as part of the ban on F-ducts.

It will be a huge blow to Sauber who were impressive in pre-season and looked to have continued that across the first race weekend of 2011.

Perez was particularly impressive on his debut, looking after his unpredictable Pirelli tyres enough to make just one stop.

The disqualification for their rear wing being “too curved” means a reclassification of the results with Felipe Massa moving up to seventh, Buemi eighth, while Force India are the biggest winners as Adrian Sutil takes ninth, with rookie Paul di Resta securing his first point on his Formula 1 debut in tenth.

Sauber technical director James Key said: “This is a very surprising and disappointing result. It appears that there is a question over the top surface of the uppermost rear wing element, this area is not the working surface of the component and therefore relatively unimportant to its function.

“Certainly this has not lead to any performance advantage. We are checking the design of the parts now to better understand the situation and we intend to appeal the decision made by the stewards.”

Article 3.10.1

Any bodywork more than 150mm behind the rear wheel centre line which is between 150mm and 730mm above the reference plane, and between 75mm and 355mm from the car centre line, must lie in an area when viewed from the side of the car that is situated between 150mm and 350mm behind the rear wheel centre line and between 300mm and 400mm above the reference plane.

When viewed from the side of the car no longitudinal cross section may have more than one section in this area.

Furthermore, no part of this section in contact with the external air stream may have a local concave radius of curvature smaller than 100mm.

Once this section is defined, ‘gurney’ type trim tabs may be fitted to the trailing edge. When measured in any longitudinal cross section no dimension of any such trim tab may exceed 20mm.

Article 3.10.2

Other than the bodywork defined in Article 3.10.9, any bodywork behind a point lying 50mm forward of the rear wheel centre line which is more than 730mm above the reference plane, and less than 355mm from the car centre line, must lie in an area when viewed from the side of the car that is situated between the rear wheel centre line and a point 350mm behind it.

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