World Solar Challenge: Day 5

I was very happy to see the lead seven World Solar Challenge cars arrive in Adelaide today. The cars, with their approximate arrival times in Darwin time, were Nuon (team 3, Netherlands, 10:26), Twente (team 21, Netherlands, 10:35), Tokai (team 10, Japan, 11:20) – shown above – and Michigan (team 2, USA, 11:24), Punch (team 8, Belgium, 11:49), Stanford (team 16, USA, 13:54), and Kecskemét (team 23, Hungary, 15:34) – shown below. Add an hour to those times for Adelaide time, and another 20 minutes or so for them to get across the city from the timing point to Victoria Square.

Below is another race chart (as always, click to zoom). Data is taken from the official timing board for days 1 to 5 (but two obviously incorrect datapoints have been removed). In this chart, the distance is horizontal, and the vertical axis expresses time, specifically how many hours each car is behind a car driving at exactly 97.42 km/h (that’s the speed which would get a car into Adelaide at exactly closing time yesterday). Final positions on the vertical axis correspond to arrival times (but add an hour for Adelaide time, and another 20 minutes or so to get to Victoria Square). I have included Cruisers in this chart – note the compulsory overnight stop in Alice Springs for Cruiser cars.

I expect twelve cars to arrive during the course of Friday, including the top three Cruisers. The rules specify that “Solarcars must not proceed south of Port Augusta after 11:00 (Darwin time = 12:00 Adelaide time). Solarcars already running south of this point must trailer from this time.” It remains to be seen how many other cars will squeeze in under this limit to get into Adelaide on Saturday morning. In what I have started calling the B race, cars that have been trailered at some point will try to clock up as many solar kilometres as possible, given that limit, together with the closures of the Glendambo and Coober Pedy control stops at 11:20 and 14:00 tomorrow.

And here are the car positions this evening: