Even though it is a really long track, the brakes are used barely eight times per lap, just like in Barcelona except that track is 1.4-miles shorter. Additionally, two of the eight braking sections on the Belgian circuit last less than one second. Which explains why the brakes are used for less than 13 seconds per lap, (13 percent of the race). The mean deceleration per lap is 4G. The average is lowered by the braking in sectors two and three, with the exception of the chicane at the top that was once called the Bus Stop (Turn 18). Obviously then, the energy each car dissipates in braking during the entire GP race is lower than at other tracks: The total of 135 kWh here is just a little more than half of the energy dissipated on Hungaroring. Still, this amount is equivalent to what nine medium-sized spa tubs consume on daily basis. From the starting line to the checkered flag, each driver will exert a total load of 41 metric tons on the brake pedal. Although lower than other GP races, it is still a sizable force that is equivalent to 0.55 ton for every minute racing.
The most demanding braking sections
Of the eight braking sections at the Circuit de Spa-Francorchamps, four are classified as demanding on the brakes, two are of medium difficulty and the other two are light. The toughest on the braking system is at Turn 5: The single-seaters arrive going 193 mph and decelerate to 104 mph in just 97 yards. The Formula 1 drivers only need to brake for 1.60 seconds, but they have to apply a force of 302 lbs. on the brake pedal and they experience a deceleration of 4.6G. Another noteworthy braking section is at turn 18 because in just 142 yards, the single-seaters have to decelerate by more than 124 mph to go from 186.4 mph to 49.7 mph. The force on the drivers is higher: They apply a load of 313 lbs. on the brake pedal and experience 4.6 G in deceleration.
Single-seaters with Brembo brakes have won 24 of the 41 GP races in Belgium that they took part in.
About Brembo SpA
Brembo SpA is the world leader and acknowledged innovator of disc brake technology for automotive vehicles. Brembo supplies high-performance brake systems for the most important manufacturers of cars, commercial vehicles and motorbikes worldwide,as well as clutches and other components for racing. Brembo is also a leader in the racing sector and has won more than 300 championships. Today the company operates in 15 countries on 3 continents, with 25 production and business sites, and a pool of over 9,800 employees, about 10 percent of whom are engineers and product specialists active in the R&D. 2017 turnover is € 2,463.6 million (12.31.2017). Brembo is the owner of the Brembo, Breco, AP, Bybre, and Marchesini brands and operates through the AP Racing brand.