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13 Italia f1 eng
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august 31, 2017 - Brembo
Brembo unveils the use of its braking systems at the 2017 Formula 1 Italian Grand Prix
On the Italian circuit the cars don't brake much, but when they do they brake hard.
Formula 1 means speed and the highest expression of speed is at the Autodromo Nazionale #monza, which will host the Italian GP on September 2 and 3, the 13th race in the 2017 World Championship.
Universally known by its nickname 'Temple of Speed', the Brianza track is located only 9 miles from Milan and was built in 1922 specifically to host the Italian Grand Prix. With 66 GP races contested here, the Autodromo Nazionale #monza is the most utilized circuit in the history of #f1; 64 GP races have been held in Monaco and 51 in Silverstone.
To limit the performance of the single-seaters, three chicanes, the so-called Varianti, were added in the 1970s. The most recent modification to the design of the track was made in 2000 when the Variante del Rettifilo was altered. The record holder for the fastest lap on the track with the current configuration is Rubens Barrichello: In 2004 with a Ferrari F2004 equipped with a #brembo braking system, the clock stopped at ’1’20’’089.
However, there is a good chance this record will be beat this season with the wider tires and higher performing cars. These two factors translate into significant additional force on the braking systems of the single-seaters, which are able to develop greater braking torque this year. What's more, the lack of aerodynamic load used to exploit the very long straights means that the braking sections will be extremely violent and challenging to manage.
According to #brembo technicians, who have classified the 20 tracks in the World Championship on a scale of 1 to 10, the Autodromo Nazionale #monza is demanding on the brakes. The Italian track earned an 8 on the difficulty index, the highest score in Europe.
The demand on the brakes during the GP
Two years ago, the fastest single-seaters in #monza ran qualifying laps going an average of 250 km/h, while this year they have the potential to exceed 260 km/h. Naturally, the amount of time spent braking will be low: Just 12% of the entire race, a percentage that is matched only by Spa-Francorchamps.
Another negative record is that the drivers brake just six times per lap; in Monaco there are 12 braking sections, in Budapest and Baku there are 11. On average, the brakes are applied for 9.7 seconds per lap, a number that surpasses only that of the Spielberg track, which is almost a whole kilometer and half shorter.
The fact that there are very few braking sections, all of which are extremely violent, means that the average peak deceleration per lap is 5.5 G. The least challenging braking section is at turn 7, where the deceleration is 5 G, a threshold no other corner has reached in all the GP races contested so far this year.
The combination of hard braking compensated by very few braking sections generates energy dissipated in braking by each car during the entire GP race that is in line with the other GP races: The 156 kWh here is similar to what has been registered on the Barcelona and Spielberg tracks.
From the starting line to the checkered flag, each driver will exert a total load of 61 tons on the brake pedal. Practically speaking, the brake force applied each lap measures more than 1.150 kg, which requires drivers to be in excellent shape, as does facing the lateral acceleration in the corners.
The most demanding braking sections
All six braking sections on the Autodromo Nazionale #monza are categorized as challenging on the brakes.
The toughest on the braking system is the last one before the finish line: The single-seaters arrive going 321 km/h and they take it down to 198 km/h in just 36 meters, which is one third the height of the Milan Cathedral. To do this, the drivers brake for 1.22 seconds applying a load of 232 kg on the brake pedal and undergoing a deceleration of 6.6 G.
The braking done on turn 4 is also impressive: The cars go from 326 km/h to 110 km/h in a mere 2.31 seconds and 62 meters. The load on the pedal comes to 190 kg and the peak deceleration is 5.5 G, the same amount that the aeronautic suits used by fighter pilots 20 years ago could guarantee to protect against.
In absolute terms, the longest braking section is at the first corner: 69 meters to descend from 326 km/h to 80 km/h. All this is done in just 2.57 seconds thanks to a load of 180 kg on the pedal.
The force required of the drivers on the sequence of corners, turns 6, 7 and 8, is unbelievable: Three braking sections with deceleration ranging between 5 G and 5.5 G and loads on the pedal measuring 198 kg, 179 kg and 181 kg. This braking sequence takes one's breath away and requires absolute clarity of mind to fully exploit the #brembo brakes.
Brembo performance
Single-seaters with #brembo brakes have won 23 of the 42 Italian GP races that they've taken part in. The victory went to Ferrari at 11 of these, but the Scuderia hasn't won in #monza since 2010. In fact, Sebastian Vettel has won in Italy with Toro Rosso and Red Bull, but he hasn't triumphed with Ferrari yet. Mercedes, on the other hand, has won four times in a row in #monza.
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