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Offline Jeremy RUK  
#1 Posted : 08 October 2015 09:08:02(UTC)
Jeremy


Posts: 7,618

RÉMI TAFFIN, DIRECTOR OF OPERATIONS
In the last two races we have been a lot closer to the performance potential of the power unit. In qualifying the Red Bulls have been noticeably closer to pole and Toro Rosso regular Q3 challengers. We’ve unlocked some greater driveability and this, coupled with the increased reliability, has given a net step forward on track, as we saw with the podium in Singapore.

Russia is a mix of Singapore and Japan, with the tight corners of the former and the flowing sections of Suzuka. As a result we are confident that we can continue our run in Sochi. We are looking forward to getting going and pushing on with the job in hand.

RENAULT 2015 FAST FACTS


The track skirts round the arena used for the 2014 Winter Olympics. It passes through the Medals Plaza and round the Bolshoi Ice Dome and close to the main Olympic village and skating centre.

The track is incredibly wide. At its narrowest it is 13m and 15m at its widest, or approximately eight men’s skis placed end to end.

The Hermann Tilke-designed Grand Prix track is the third longest on the F1 calendar this year after Spa-Francorchamps and Silverstone. The length of the circuit, plus its stop-start nature, means fuel consumption is one of the highest of the season.

The track is rarely used over the year so there is little rubber on the tarmac and tyre wear can be very unpredictable. Engine engineers can help reduce tyre wear by reducing wheelspin in the slow corners with accurate power delivery.

The weather in Sochi last year was around 20°C on average, with low humidity. In climate it is actually very similar to Austin although it is on the same latitude as Toronto, Nice and the Gobi Desert.

POWER UNIT DETAILS
ICE
The Sochi race track is a permanent course but with the characteristics of a street circuit. The barriers are close and the track passes next to buildings in a series of tight second and third gear turns.

Sochi may resemble a street track in look, but, with two long straights and one high speed turn top speed will be around 330kph while the average speed is over 200kph. Approximately 60% of the lap is spent at wide open throttle, well above the ‘traditional’ street average.

The lap opens with a short burst of wide open throttle. The pit straight blends into a right hand curve where the driver will keep the speed until the braking point for Turn 2, giving a total full throttle time of 15 seconds.

There is only one other sustained period of wide open throttle round the lap, the curve from Tur

TURBOCHARGER
Sochi is a relatively easy race for the turbo. The ICE is only stressed twice over the lap and the tight corners are spread throughout the 5.853km track. Turbo response is important, but no more difficult to calibrate at this race than at a ‘regular’ track such as Barcelona or Silverstone.
MGU-K
With fuel consumption high, the focus is to recover as much energy as possible under braking. Of the 18 corners, nine are large stops so the MGU-K should be able to recover enough energy to balance out the thirsty ICE’s fuel consumption.

Sector two is very point-squirt, with right-angled turns that give the MGU-K plenty of chance to recover energy. Turns 2 and 4 are the hardest stops and the car speed drops to 120kph, with each braking event around 2.0 seconds.

The back of the circuit has similar corners, such as Turn 13 where the speed drops to 85kph.
MGU-H
The radial Turn 3 that rounds the Olympic arena is taken at full throttle. This sustained throttle use will give the MGU-H a steady stream of exhaust from which it can recover the lost heat energy.

Another period of significant full throttle is the back straight, where the driver is on the pedal for 12secs.

Offline del115  
#2 Posted : 08 October 2015 09:23:26(UTC)
del115


Posts: 1,403
Location: West Wales

Originally Posted by: Jeremy RUK Go to Quoted Post
The Hermann Tilke-designed Grand Prix track


Does not bode well for an interesting race then - IMHO of course
Offline Jeremy RUK  
#3 Posted : 12 October 2015 07:23:20(UTC)
Jeremy


Posts: 7,618

Race report:

Danill Kvyat secured a popular sixth position in the Russian Grand Prix today. The Infiniti Red Bull Racing driver finished his home event in the points following an action-packed race that involved multiple incidents and two safety car periods.*
Kvyat was the highest-classified Renault-powered driver, with both Daniel Ricciardo (Infiniti Red Bull Racing) and Carlos Sainz (Scuderia Toro Rosso) retiring from the race. Scuderia Toro Rosso’s Max Verstappen suffered a first-lap puncture and finished in 11th.**
*Classified in fifth following Raikkonen’s penalty
**Classified in tenth following Alonso’s penalty
Key race points:
• Home hero Daniil Kvyat finished in sixth, moving up five positions from his grid starting slot. Unlike his team-mate, he remained on track during both safety cars and moved into the top four. He fell back to the end of the top ten when he stopped, but gained positions when Ricciardo, Sainz and finally Bottas stopped on track. The Russian was moved to fifth position following the application of Raikkonen’s post-race penalty.
• Daniel Ricciardo made an early pit stop under the second safety car period. He fell back to tenth but gained track position in the later part of the race as the top ten pitted. He looked to have fourth but retired on lap 49.
• Max Verstappen finished in 11th. He suffered a puncture after being caught up in the first lap Hulkenberg-Ericsson incident and fell back to the rear of the field, but fought back to finish just out of the top ten on track, but scored one point after Alonso’s post-race penalty was added to his time.
• Carlos Sainz started the race from the rear of the field after his accident yesterday. He was running in seventh until lap 47 when he had to pull up on the side of the track with an issue unrelated to the engine.
Rémi Taffin, Director of Operations:
Sochi is a very demanding track with a high percentage of wide open throttle and tight, slow corners. Nevertheless reliability has been good, even with the lack of running due to the various stoppages in every session. The potential was there to get more points today but circumstances didn’t allow it to play out, but it’s promising for the final four races of the year.
Cyril Abiteboul, Managing Director:
A fairly average final result, but it belies the spirit shown by both teams this weekend. We were pleased that Carlos was OK, plus able to race, after his huge accident yesterday. Everyone had very little running, which appeared to cause some problems on the chassis side, but we kept focused and had a trouble-free weekend on our own reliability front. Our speed was OK and we look forward to challenging for some more points at the next race in Austin. I would also like to extend our congratulations to Mercedes for winning a second constructors’ title. They have done a fantastic job and have set the standard for us to achieve.
Offline foxspeed  
#4 Posted : 12 October 2015 19:08:37(UTC)
foxspeed


Posts: 21,608
Location: retour dans la bulle

quite an interesting race with all the "offs" LOL
Offline Marc_250  
#5 Posted : 12 October 2015 19:31:25(UTC)
Marc_250


Posts: 5,118

A missed opportunity for Maldonado I thought but Grosjean stepped up to the plate.
Offline foxspeed  
#6 Posted : 13 October 2015 17:56:56(UTC)
foxspeed


Posts: 21,608
Location: retour dans la bulle

Originally Posted by: Marc_250 Go to Quoted Post
A missed opportunity for Maldonado I thought but Grosjean stepped up to the plate.


role reversal at work there LOL LOL
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