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From Wikipedia, the free encyclopedia

Renault R31
Vitaly Petrov 2011 Malaysia FP3.jpg
CategoryFormula One
Designer(s)James Allison (Technical Director)
PredecessorRenault R30
SuccessorLotus E20
Technical specifications[1]
ChassisMoulded carbon fibre and aluminium honeycomb composite monocoque, with engine incorporated as a fully stressed member
Suspension (front)Carbon fibre double wishbone, operating inboard torsion bar and damper units via a pushrod system
Suspension (rear)As front except via a pullrod system
EngineRenault RS27-2011 2,400 cc (146.5 cu in) 90° V8, limited to 18,000 RPM with KERS naturally aspirated mid-mounted
TransmissionSeven-speed semi-automatic titanium gearbox with reverse gear "Quickshift" system
Weight640 kg (1,411 lb) (including driver)
TyresPirelli P Zero
OZ Wheels (front and rear): 13"
Competition history
Notable entrantsLotus Renault GP
Notable drivers9. Brazil Bruno Senna
9. Germany Nick Heidfeld
10. Russia Vitaly Petrov
Debut2011 Australian Grand Prix

The Renault R31 was a Formula One racing car designed by Lotus Renault GP for the 2011 Formula One season. 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,[2] 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.


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

The R31 was unveiled at the Circuit Ricardo Tormo in Valencia, Spain on 31 January 2011,[3] where Vitaly Petrov was first to drive it.[4] Renault had planned to have Robert Kubica as teammate to Petrov, but Kubica got injured while testing a rally car. So, Renault hired Kubica's former 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 have not confirmed or denied any technical developments except to state that the car has been the product of a twelve-month development cycle.[5] It has been suggested[6] that several other teams have been quick to adapt to the concept, with talk that the forward blown diffuser will be implemented on several cars for upcoming tests. It has been further implied[7] that the exhaust system offers 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 – have downplayed the importance of the parts.[8] 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':

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.[10]

Season review

It was a solid début for the R31 with Vitaly Petrov qualifying sixth and then taking his first F1 podium in the opening round of 2011 in Melbourne. This was followed by an equal qualifying and race result for Nick Heidfeld in the Malaysian Grand Prix while teammate Petrov was launched in the air by a high kerb with a few laps remaining. This was to be the last of 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.

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
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.


  1. ^ "Lotus Renault GP R31: Technical Specifications". Lotus Renault GP. 31 January 2011. Retrieved 5 February 2011.
  2. ^ Collantine, Keith (2011-01-31). "Lopez has no concerns over tobacco branding". F1 Fanatic. Keith Collantine. Retrieved 2011-02-01.
  3. ^ "Renault to unveil R31 ahead of first test". Formula One Administration. 6 January 2011. Retrieved 6 January 2011.
  4. ^ Noble, Jonathan (2011-01-25). "Petrov first to test new Renault". Haymarket Publications. Retrieved 2011-01-26.
  5. ^ Noble, Jonathan (2011-01-31). "Renault: Long development time a boost". Haymarket Publications. Retrieved 2011-02-01.
  6. ^ Jonathan Noble; Dieter Rencken (2011-02-01). "Renault confident in radical exhaust". Haymarket Publications. Retrieved 2011-02-03.
  7. ^ Allen, James (2011-02-02). "Valencia Test: Day 2 – Ferrari and Alonso step up". James Allen on F1. James Allen. Retrieved 2011-02-03.
  8. ^ Noble, Jonathan (2011-02-02). "Brawn: Forward exhausts not essential". Haymarket Publications. Retrieved 2011-02-03.
  9. ^ "Renault admits its 2011 car and exhaust concept was a 'bold failure'". Autosport. November 19, 2011. Retrieved November 26, 2011.
  10. ^ "Martin Brundle's Racing Lines - 2011 Races".

External links

This page was last edited on 8 February 2019, at 11:08
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