19/09/2011
NEWS STORY
The final street circuit race of the season takes place in Singapore: the only country to host a grand prix that takes place entirely at night, under the glare of 1500 light projectors.
Inaugurated in 2008, the race takes place through the Marina Bay area of Singapore, on asphalt that normally serves as busy city streets. As a result, the bumpy surface is inconsistent and offers low grip, incorporating the usual street furniture such as painted white lines and manhole covers as extra hazards for the tyres.
The two compounds that Pirelli will bring to Singapore are the P Zero Yellow soft tyres and P Zero Red supersoft tyres: the same combination that was used on the street circuits of Monaco and Canada as well as in Hungary. The characteristics of Singapore mean that the average speed lies in between those two tracks, but just like Monaco and Canada the track progressively rubbers in and gets quicker over the course of the weekend. However, Singapore is also one of the hottest and certainly the most humid street circuit of the season, with minimum temperatures of around 28 degrees centigrade during the race and humidity between 75% and 90%. Despite this, it has never yet rained during the race in its three-year history. Engineers and tyre technicians are faced with the opposite problem to the usual one they encounter, as track temperatures tend to go down dramatically during each session, rather than rise.
With 23 corners - two of which are taken at over 100 mph - Singapore has the second-highest number of corners of any circuit (Valencia has the highest, with 25). This makes it as demanding on the tyres as it is on the drivers, with the last sector of the lap in particular being one of the most technical of the entire season.
Paul Hembery: "Singapore is a race that adds a unique and truly spectacular new dimension to the Formula One calendar. Because it is such a specific event, this makes it quite hard for teams to arrive at the best set-up and you often see some quite different solutions. Our tyres have to work equally effectively within a wide range of parameters, and this is one of the biggest challenges for us over the course of the year. A lot is made of the heat in Singapore, but what people tend to feel is actually the humidity, which means that our tyres should be comfortably within their working range when it comes to ambient and track temperature. The tyres will be working as hard as the drivers this weekend: many of the drivers say that this street circuit is even more demanding than Monaco. As we've seen in the past, particularly in Canada, the combination of soft and supersoft tyres provides plenty of opportunities for the teams to put in place some interesting strategies, with the supersoft in particular expected to provide an appreciable performance advantage. The free practice sessions in Singapore will be crucial, as the teams assess the effect of each of our tyres on their set-ups and overall speed."