You might want to listen along to this technical preview of the race from @ScarbsF1 on 'The Flying Lap' whilst you're doing so...
Hamilton brakes on the approach to 6:
![](https://lh5.googleusercontent.com/-MfyF6osVKOs/TfD2OS7TeUI/AAAAAAAABmQ/icWzgdMkqZQ/s800/f12010canHamTurn6and7Brake.jpg)
as well as lifting off the throttle:
![](https://lh3.googleusercontent.com/-xusAknWnYW8/TfD2PElqSBI/AAAAAAAABmU/wkmbSnuNaqE/s800/f12010canHamTurn6and7Throttle.jpg)
There's gear shifting going on, although the following diagram doesn't make it very clear...
![](https://lh5.googleusercontent.com/-b4ruFwYRduY/TfD2P0n5GZI/AAAAAAAABmY/E9nWpPE0Fk4/s800/f12010canHamTurn6and7Gear.jpg)
We get a better idea of how HAM is changing gear from this sort of view (sLap is distance round the track. I forgot to note the distances used to generate the above images, but the range is about the same...)
Here are the brake and throttle, along with gear change highlighted:
![](https://lh6.googleusercontent.com/-RH76DJADKgQ/TfD-RVHI7sI/AAAAAAAABnw/XWYjITnsInQ/s800/f12010canHAMrThrottleAndbrakevsLapNgear.jpg)
A rapid change down from 6th to 2nd, then back up to 5th.
How does that translate to speed?
![](https://lh6.googleusercontent.com/-A9-LKJPC3Fo/TfD-TGwdIfI/AAAAAAAABn8/H8uBGTzG-PM/s800/f12010canhamvcarvslapngear.jpg)
Finally, let's see what sort of forces HAMilton experiences. gLong is the longitudinal force experienced while braking and accelerating:
![](https://lh6.googleusercontent.com/-vHcECoyDv64/TfD2RX1Y6SI/AAAAAAAABmg/HDfRLsWIP6M/s800/f12010canHamTurn6and7Glong.jpg)
This chart shows just how significant the deceleration is:
![](https://lh3.googleusercontent.com/-sdQ-7ojf-co/TfD-SiekrNI/AAAAAAAABn4/SPAhA2JvSAk/s800/f12010canHamglongvslapngear.jpg)
The lateral force is the force that flings the driver from side to side as they move off the straightline:
![](https://lh5.googleusercontent.com/-Pj08pcRaRn4/TfD2SRqP97I/AAAAAAAABmk/xE1-UtWi9O4/s800/f12010canHamTurn6and7Glat.jpg)
So here we see how HAMilton feels himself being flung to the right as he gets onto the line, then the left the right again:
![](https://lh6.googleusercontent.com/-dpxPXcYiqtY/TfD-SNBlYlI/AAAAAAAABn0/PEAbLowsZ-g/s800/f12010canHAMglatvslapNgear.jpg)
What else do those diagrams show? (Please feel free to add you own thoughts in the comments:-)
Are there any other corners I should be pulling out the data for?
That's it for now: for more race preview information, why not check out Sidepodcast's Canada 2011 Race Information?
Howto - I used Gephi for the track maps, and R for the charts, commands of the form:
plot(rThrottlePedal~sLap,data=subset(HAMfull_can_2010, sLap>940 & sLap<1530),col=NGear,main="F1 2010 Canada HAM")
points(pBrakeF~sLap,data=subset(HAMfull_can_2010, sLap>940 & sLap<1530),col=NGear,pch=3)
legend("right",c("1","2","3","4","5","6","7"),col=1:7,pch=1)
Telemetry data captured (h/t @bencc) from the McLaren F1 Live Dashboard during the race last year, probably Copyright (©) McLaren Marketing Ltd 2010.
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