segedunum wrote:Interesting stuff.
The widely held belief is that the McLaren conserved its tyres better during the race (perhaps because some people were expecting worse), but this gives lie to that when you actually compare it relative to a competitor. The drop-off in performance of the McLaren is really quite marked whereas Ferrari's drops of much more gradually. There is a much bigger window of time where Ferrari are faster.
I had no idea the lap times had gone off that much with the McLaren. I just wonder what will happen when they get some decent levels of downforce on the car, get to tracks with more cornering characteristics and start working their tyres harder. They aren't competing with Ferrari any time soon on that evidence.
marcush. wrote:wyou could not say that more downforce is equal to abusing the tyres more.It could as well be that having not enough downforce is making you sliding and abusing the tyres...or not? So adding downforce could in my view help their tyre degradation.
firbanks wrote:I put together a quick analysis of the lap times of Alonso's Ferrari and Hamilton's McLaren on the medium tires.
The figure shows lap times from Alonso and Hamilton following their pit stops on lap 16 and 15 respectively (outlaps have been excluded). Both ran largely unimpeded with only a few exceptions. Alonso closed the gap to Vettel on lap 30 but did not pass until lap 34 (marked as ‘1’ on the figure). This occurred shortly after Vettel’s engine problem developed. In between these laps you can see how Alonso’s lap times dropped off as he was held up and forced to move around to keep his car cool. Hamilton, in comparison, caught Vettel after his engine problem, and thus was only slightly delayed on lap 37 (marked as ‘2’ on the figure) prior to passing him on lap 38. Hamilton was also briefly held up behind Liuzzi on lap 18 just prior to Liuzzi pitting.
From the two trend lines we can see that the McLaren was initially faster than the Ferrari by a few tenths following pit stops. This gap slowly closed over the next 13 laps until the Ferrari began to produce faster lap times. By the end of the race, the Ferrari was roughly 1.2 seconds faster than the McLaren. This performance differential may be tempered in part by the two drivers letting off to save the engine for the last few laps, but the relationship between the two curves remains similar.
richard_leeds wrote:Nice to see some hard data, thanks.
I think the analysis has validity up to lap 37, after then the times rather yo yo with drivers putting in blocks of fast times followed by blocks of slow times. I recall a moment when we heard a message on Hamilton's radio telling him to slow down, I wonder if that was around lap 35?
The trend curve hides the fact that Hamilton a 3 lap burst in laps 42, 43, 44 that matched Alonso's fastest block.
The other thing that stands out are Alonso's super fast times on laps 36 and 45. Are they correct?
My conclusion is that Hamilton was able to match Alonso for the first 35 laps. Also that the Alonso was able to demonstrate sustained fast times rather than Hamilton's short burst.
Edit to add a graphic showing my thoughts:
elsab wrote:Hamilton pushed his tyres much harder in his outlap (not shown in the graph) and in his first full lap of the run to ensure that he overtook Rosberg. This will undoubtably have effected the tyres for the rest of the stint.