F1 | Brembo: In Singapore, F1 cars braking 15 times for a total of 22 seconds per lap could lead to excessive wear


Finishing the European tour with the Monza race, Formula 1 moves to Asia for the 15th competition in the 2018 World Championship, being held September 14 to 16 on the Marina Bay Street Circuit in Singapore.
Stage for the first night-time GP held in Formula 1 in September 2008 and the 800th GP race overall, the track is carved out of Marina Bay streets that are usually open to busy traffic.
The track was designed by architect Hermann Tilke and was changed first in 2009 then in 2013 when the chicane at turn 10 was eliminated.
A third and final revision took place in 2015 when corrections were made to turns 11, 12 and 13.
Compared to the other street circuits, this one stands out for its length (5,063 meters against 3,337 yards in Monaco) and speeds (the average speed per lap is 183 km/h, 14 km/h more than Monaco), besides the inconsistencies on the tarmac due to manhole covers and painted lines that can cause a loss of grip.
The quick pace and lack of space to cool down (the longest straight measures just 832 meters), make this one of the most difficult circuits on the braking systems.
Wear of the friction material is only one of the channels that has to be constantly monitored via telemetry.
According to Brembo technicians, who classified the 21 tracks in the World Championship, the Marina Bay Street Circuit falls into the category of tracks that are extremely demanding on the brakes.

  • The demand on the brakes during the GP:
    The 23 corners on the track require drivers to use their brakes 15 times per lap, which is the record for the championship.
    Of all the other 19 tracks, only Monaco gets close with 12 braking sections per lap. Baku, Budapest and Abu Dhabi have eleven and the rest of the circuits have even fewer.
    Another record is the time spent braking: More than 22 seconds per lap. The brakes are used for 23% of the overall duration of the race.
    Just think, two weeks ago the Formula 1 cars raced in Monza using their brakes only six times per lap, which equals 12% of the overall race.
    The energy dissipated in braking is high too: 255 kWh, which is equivalent to the amount of electric energy consumed during the GP race by 150 inhabitants of Singapore.
    The extreme windy nature of the track keeps the peak decelerations under 4.9 G, even going below 4 G at turn 6, resulting in an average peak deceleration per lap of 3.9 G.
    From the starting line to the checkered flag, each driver exerts a total load of 110 tons on the brake pedal. In other words, the force is more than 1 metric ton for every minute of the race.
    This physical exertion is significant especially when considering the high levels of humidity that distinguish this race, along with the elevated air temperatures.


  • The most demanding braking sections:
    Of the 15 braking sections at Marina Bay Street Circuit, three are classified by Brembo technicians as very demanding on the brakes, six are of medium difficulty and the remaining six are light.
    The most challenging over all is Sheares Curve (turn 1, named in memory of Benjamin Sheares, former President of Singapore): the single-seaters go from 295 km/h to 135 km/h in 1.92 seconds, traveling barely 98 meters.
    At this point, the drivers are subjected to a deceleration of 4.8 G and they apply a 141 kg load on the brake pedal.
    Major force is put on the drivers (4.7 G) and on the braking systems at Memorial Curve (turn 7, the name comes from the nearby park that commemorates the victims of World War II): The cars drop from 315 to 127 km/h in 114 meters and 2.08 seconds thanks to a load of 144 kg on the brake pedal.
    Slightly less demanding is braking at turn 14 because the single-seaters arrive going less than 300 km/h: They go from 276 km/h to 101 km/h in 106 meters with 4.8 G in deceleration and 144 kg applied to the pedal.


  • Brembo performance:
    Single-seaters with at least one Brembo brake component have won the last 8 GP races in Singapore. In six of these races, the driver who won had also earned pole position.
    Four of the victories went to Sebastian Vettel: Three in a row with Red Bull and in 2015 with Ferrari. ​

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