Overview
As of October 23rd, 2016, MSXII's wheelbase and track have been set as 2600mm and 1718mm respectively. These dimensions were driven by the overall shape of the vehicle and by the need to provide enough surface area for 5m2 of solar cells on the roof.
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By scaling pictures of other solar cars, we can reverse engineer some of their key dimensions:
| Team | Wheelbase (mm) | Track (mm) | Base:Track Ratio |
|---|---|---|---|
| MSXII | 2600 | 1600 | 1.62 |
| Thyssen Krupp | 2850 | 1570 | 1.81 |
| Sun-swift | 3230 | 1500 | 2.15 |
| Stella Lux | 2770 | 1330 | 2.08 |
Other 2 Door Coupes
| Team | Wheelbase (mm) | Track (mm) | Base:Track Ratio | Turning Circle (ø in m) |
|---|---|---|---|---|
| MSXII | 2600 | 1600 | 1.62 | TBD |
| Mini Cooper (2 Door) - 2016 | 2495 | 1501 | 1.66 | 10.8 |
| VW Golf - 2015 | 2637 | 1550 | 1.70 | 10.9 |
| Hyundai Veloster - 2016 | 2650 | 1560 | 1.70 | 10.4 |
| Mazda 3 - 2016 | 2700 | 1555 | 1.74 | 10.6 |
| Audi R8 - 2016 | 2650 | 1638 | 1.62 | 11.8 |
| Acura NSX - 2005 | 2530 | 1510 | 1.68 | 11.6 |
Regulations
WSC 2017
- 2.20.1 - Solar cars must be able to negotiate a Figure-8 course in less than 9 seconds per side and less than 18 seconds overall.
- 2.20.2 - Solar cars must be able to negotiate a slalom course in less than 11.5 seconds.
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Using a wheelbase and track have been set as 2600mm and 1718mm 1600mm respectively, the maximum steering angle required to achieve a 10m turning radius was found to be 17.4˚.The rectangle in the sketch below shows the width and length of the vehicle. The Large circle shows the outside diameter of the above figure-8 shown in the WSC regulations.
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