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Version | Description/Changes | Notes | Dimensions (LWH) (m) | Cd | CdA | Drag Force (N) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
MSXV (for reference) | Wide body (so that other subsystems would 100% fit) Rounded nose Curved bottom and top profiles  | 4.95 x 1.85 x 1.17 m Frontal Area 1.35m^2 | 0.11 | 0.1485 | 17.73 | |||||
V15 (Liam) | Straight top/bottom profiles Rounded nose ~About 5.75 m^2 for solar array 
| Wheelbase length & max steering angle most likely will not comply with ASC 2026 regs (currently 2m and 12 degrees, will need to be around 2.4m and 15 degrees) for a 5.5m car.
Need to increase length to accommodate solar | 5.5 x 1.35 x 1.13 m Frontal Area 0.98 m^2 | 0.13 | 0.1274 | 15.30 | ||||
V16 (Liam) | Straight top/bottom profiles More aggressive, slightly pointed nose ~5.25 m^2 for solar array 
| Not enough room for solar, reduction in Cd and FA is minimal. Smaller frontal area = larger protruding canopy = more drag
| 5.5 x 1.29 x 1.13 m Frontal Area 0.96 m^2 | 0.125 | 0.12 | 14.30 | ||||
V17 (Liam) | Rounded top/bottom profiles Less aggressive nose ~5.25 m^2 for solar array Canopy comes to a point at the back instead of an edge 
| Still will need more room for solar, was just experimenting with changing the top/bottom profile shape | 5.5 x 1.35 x 1.13 m Frontal Area 1.02 m^2 | 0.117 | 0.119 | 14.32 | ||||
V18 (Liam) | Rounded top/bottom profiles ~5.25 m^2 for solar array Canopy comes to an edge at the back (less flow separation) 
| Not achieving significant enough reduction in Cd. Things to try:
| 5.5 x 1.35 x 1.17 m Frontal Area 1.05 m^2 | 0.116 | 0.122 | 14.52 | ||||
V19 (Liam) | Proof of concept for drag reducing alterations ~5.10m^2 for solar array Longer canopy, removed taper at back (almost) 
| CFD inconclusive | 5.5 x 1.35 x 1.17 m Frontal Area 1.05 m^2 | |||||||
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