Renault R31

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Renault R31
Lotus Renault GP
Notable drivers9. Brazil Bruno Senna
9. Germany Nick Heidfeld
10. Russia Vitaly Petrov
Debut2011 Australian Grand Prix
Last event2011 Brazilian Grand Prix
RacesWinsPodiumsPolesF/Laps
190200

The Renault R31 was a

2011 Formula One season. The chassis was designed by James Allison, Naoki Tokunaga, Tim Densham and Dirk de Beer with Rob White leading the engine design. The car was driven by Vitaly Petrov and Nick Heidfeld, who was replaced mid-season by Bruno Senna
.

Design

Robert Kubica testing the R31 on Wednesday 2 February, days before his near fatal rally crash.
The R31's forward facing exhaust.

The R31 was unveiled at the

BMW Sauber teammate Nick Heidfeld instead. The car attracted attention for a radical exhaust system, with speculation suggesting that it could be routed under the floor to create a "forward blown diffuser" effect after the car was unveiled with no visible exhaust vents, though Renault did not confirm nor deny any technical developments except to state that the car had been the product of a twelve-month development cycle.[4] It was suggested[5] that several other teams were quick to adapt to the concept, with talk that the forward blown diffuser would be implemented on several cars for upcoming tests. It had been further implied[6] that the exhaust system offered significant gains, as incorporating them is a complex process, requiring teams to rearrange the internal electronics of the car and undertaking strenuous side-impact tests to get the new parts approved. However, some key personnel from other teams – most notably Mercedes' Ross Brawn – downplayed the importance of the parts.[7]
The exhaust system became a major disadvantage as the season unfolded. The car suffered from low downforce on slower circuits, particularly Singapore. The system also made it extremely difficult to develop the car. After the Abu Dhabi Grand Prix, designer James Allison admitted the forward exhaust concept rendered the R31 a 'failed experiment':

"The layout which had promised so much, and which, had it delivered, would have been almost impossible to copy, proved very tricky to develop and had a fundamental weakness in slow corners that has been an albatross around our neck all year. [8]

Martin Brundle described the forward-facing exhaust as "sounding like a bag of nails." However David Coulthard disproved this theory by buying a bag of nails.[9]

Controversy

The car's distinctive black and gold livery was designed as a tribute to the Team Lotus cars of the 1980s and the famous John Player Special liveries (those cars also used Renault engines). Speculation suggested that as the design is reminiscent of a cigarette package, the team would be in violation of strict anti-tobacco laws in Canada and would be unable to use it at the 2011 Canadian Grand Prix. However, senior team personnel dismissed the claims,[10] stating that "another famous team" was racing with colours similar to those of another tobacco brand and had done so in Canada without trouble in previous years. Ultimately, the car raced in Canada with no changes to its livery.

Season review

It was a solid début for the R31 with

Renault's podiums though, and they remained fourth in the Constructors' Championship after Petrov's ninth in China and their first double points score in Turkey with seventh and eighth. Heidfeld's fire in Saturday Practice meant the car was badly damaged in the Spanish Grand Prix
, and he had to start in twenty-fourth. The R31 was repaired by Sunday though, and Heidfeld charged to the points (eighth) and pushed teammate Petrov out of them (eleventh) in the process.

Vitaly Petrov driving the R31 at the Malaysian Grand Prix.

In Monaco Petrov crashed out from sixth place with 6 laps to go, knocking himself unconscious temporarily, and causing a red flag. Heidfeld still collected valuable points though, finishing in eighth again. In a wet Canadian Grand Prix, it was Heidfeld's turn to crash, this time from fourth; Petrov however, still took fifth by the end of the race. Heidfeld took points in both Valencia and Britain to keep them ahead of Mercedes for as long as possible, before they ended up fifth after the Silverstone race. Two retirements for Heidfeld followed in his final two races for the team in Germany and Hungary, both causing significant damage to the R31. With only a ninth in Germany for Petrov, at the team's first no score of the season in Hungary it was obvious development of the R31 was not fast enough and they were slipping backwards.

Bruno Senna replaced Nick Heidfeld at Renault from the Belgian Grand Prix onwards.

After the summer break, the car seemed to have rediscovered form in qualifying; with Heidfeld's replacement Bruno Senna qualifying seventh in mixed weather in Spa and Petrov tenth - and the pair the opposite way around in Monza. Unfortunately, the same could not be said for these races, with only two ninth places (and Senna's first points) from the pair of them. Things seemed dreadful for them in the Singapore Grand Prix, a track that definitely did not suit the car, because Petrov was knocked out in Q1 and Senna was only fifteenth in qualifying. Senna did not improve his position in the race, and Petrov moved up one place. This meant the team were struggling even to maintain their fifth place in the Constructors' Championship - sixth placed Force India had scored 36 points in the last four Grands Prix to Renault's 4, and were now only 22 points behind. Both Senna and Petrov returned to the top ten in qualifying in the Japanese Grand Prix, and after a close race with many other cars for the tail end of the points, Petrov eventually took ninth with Senna down in nineteenth. Three disappointing races followed in Korea, India and Abu Dhabi, where neither driver scored a point. Petrov finished tenth to score one point at the R31's final race, and 2011 season finale at the Brazilian Grand Prix. Senna failed to score points by finishing in seventeenth, yet Renault remained fifth in the Constructors' Championship standings with a best result of third place, albeit being 95 points behind Mercedes.

Complete Formula One results

(key) (results in bold indicate pole position; results in italics indicate fastest lap)

Year Entrant Engine Tyres Drivers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Points WCC
2011 Lotus Renault GP
Renault RS27 V8
 P AUS MAL CHN TUR ESP MON CAN EUR GBR GER HUN BEL ITA SIN JPN KOR IND ABU BRA 73 5th
Nick Heidfeld 12 3 12 7 8 8 Ret 10 8 Ret Ret
Bruno Senna 13 9 15 16 13 12 16 17
Vitaly Petrov 3 17 † 9 8 11 Ret 5 15 12 10 12 9 Ret 17 9 Ret 11 13 10

† Driver failed to finish the race, but was classified as they had completed >90% of the race distance.

References

  1. Renault GP
    . 31 January 2011. Retrieved 5 February 2011.
  2. ^ "Renault to unveil R31 ahead of first test". Formula1.com. Formula One Administration. 6 January 2011. Retrieved 6 January 2011.
  3. Haymarket Publications
    . Retrieved 2011-01-26.
  4. Haymarket Publications
    . Retrieved 2011-02-01.
  5. Haymarket Publications
    . Retrieved 2011-02-03.
  6. ^ Allen, James (2011-02-02). "Valencia Test: Day 2 – Ferrari and Alonso step up". James Allen on F1. James Allen. Retrieved 2011-02-03.
  7. Haymarket Publications
    . Retrieved 2011-02-03.
  8. ^ "Renault admits its 2011 car and exhaust concept was a 'bold failure'". Autosport. November 19, 2011. Retrieved November 26, 2011.
  9. ^ "Martin Brundle's Racing Lines - 2011 Races". Archived from the original on 2011-07-31. Retrieved 2012-01-09.
  10. ^ Collantine, Keith (2011-01-31). "Lopez has no concerns over tobacco branding". F1 Fanatic. Keith Collantine. Retrieved 2011-02-01.

External links

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