Rémi Taffin, Renault Sport F1 head of track operations:
Even with the addition of the new slow loop, Silverstone remains one of the toughest challenges on the calendar for the engine. A touch over 60% of the lap is spent at full throttle and the average speed is well over 200kph. The numerous high speed corners challenge the RS27, particularly the sweeping Maggots-Beckett-Chapel complex where average speeds are around 250kph and no lower than 190kph at any one point. These speeds and changes of direction put huge lateral forces through the car so the oil and fuel systems have to be resilient as the fluids are squashed from side to side. Particular attention is paid to the oil circuit and fuel collector, especially towards the end of the race to avoid engine starvation.
With four straights on the circuit, we work towards delivering correct gear ratios at the higher revs to get powerful acceleration and outright power. The Hangar Straight is the longest of the straights at 875m and top speeds peak at 310kph so it is important to hit vMax just before the braking zone for Stowe, a fourth gear right hander. The notorious British weather may however have an impact on ratio selection as the wind direction can change very quickly, meaning more or less time spent at the limiter.
As much as we talk about the fast corners, we also need to address the slower stops, such as Club and the new Loop, which reduce the average speed and demand driveability and low-rev response. It’s a balance to get right, but the flexibility of the RS27 plays dividends at these types of circuits.
With all our teams based in the UK this GP does feel like another home race. In this respect we will be aiming to do as well as we can to achieve everyone’s potential in front of the home crowd.