First Electric van boat tail

[aerohead]

Originally Posted by JohnForde

Hard to lower floor.
1. License plate
2. rear sensors
3. Porous everywhere

Gonna try a foam floor @ 24" continuous height

I would recommend that you add material to that area so as to extend it out to the lower 'end' of the 'magenta' line you've shown.
I don't think there's any legal requirement, as might apply to an 18-wheeler, and it's DOT rear bumper region, as implied in what Lawrence Livermore depicted.
Foam floor sounds good!

[JohnForde]

I tested for 55 miles with strong & mixed winds. I sense a small improvement. I got 1.9 mi/kWh. My goal is to get above 2 @ 63 mph. A longer test may establish success.
I still need to tape the door hinges,
Try more acute angles. It is now at 11. I may try 14 & 16.
Smooth the underside.

[freebeard]

In another thread, Logic posted a link to a PDF that includes new information on an Italian researcher's work that includes one of the more interesting designs IMHO of all time, the Morelli Urban car.



aerohead did a thread on this in 2015, IDK if he remembers. ecomodder.com: Morelli's 'Fluid Tail'

Here is the only picture from then:



Obviously the forebody differs, but that black 'cuff' Zevo provided should possibly be at 45 degrees instead of 20.