Page Comparison

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 make aero wider if this is the case, as we do not want dynamic wheel covers opening on small turns.

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

• To avoid this, canopy needs to be as long as possible (L/h ratio should be around 5-6)

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:

• Making taper near the tail less aggressive (we still want to include the taper to save weight however there is too much flow separation atm.)

• Larger fillet between roof and canopy

• Longer canopy

5.5 x 1.35 x 1.17 m

Frontal Area

1.05 m^2

0.116

0.122

14.52