Wind Drag

[Jay3wheel]

I only asked, because the P4 certainly looks more aerodynamic than the P3, So, if that was the P3 #,,,,,,,,,,,,It isn't that important.

 

[RKing]

Strangely enough,an online AERO calculator yields 86.42 MPG at 70MPH using 10 Sq ft frontal area, 1500lbs weight and 2.3 CD.
Sounds closeish An only using 7.62 HP to hold that 70MPH, 70% of that required by aero and the rest rolling resistance.

Numbers are fun to play arround with
http://ecomodder.com/forum/tool-aero-rolling-resistance.php

 

[Jay3wheel]

Strangely enough,an online AERO calculator yields 86.42 MPG at 70MPH using 10 Sq ft frontal area, 1500lbs weight and 2.3 CD.
Sounds closeish An only using 7.62 HP to hold that 70MPH, 70% of that required by aero and the rest rolling resistance.

Numbers are fun to play arround with
http://ecomodder.com/forum/tool-aero-rolling-resistance.php

The people doing the show, seemed very impressed with this number, and PE said yes it is slippery.

 

[NSTG8R]

Strangely enough,an online AERO calculator yields 86.42 MPG at 70MPH using 10 Sq ft frontal area, 1500lbs weight and 2.3 CD.
Sounds closeish An only using 7.62 HP to hold that 70MPH, 70% of that required by aero and the rest rolling resistance.

Numbers are fun to play arround with
http://ecomodder.com/forum/tool-aero-rolling-resistance.php

Cool link RKing! But the decimal should still be to the hundredths (i.e. - 'point' something)

 

[RKing]

Good Grief..... Yep I entered it as .23 , just can't convince the 2 fingers on the keyboard to type what I ment !

 

[NSTG8R]

The way I understand it, anything over a "1.0" drag coefficient would be as aerodynamic as my yard barn going down the road....with the door open.

 

[NSTG8R]

Pulled off an automotive DC chart. I'm thinking the Elio would be close to the Aptera (.15)...total guess on my part, but the tandem design does have a much smaller frontal aspect.

Toyota Prius 2004 - 2009 0.26 58.7 67.9 22.4 5.83
Honda Insight 2000 - 2006 0.25 53.3 66.7 20.0 5.00
Toyota Prius 2010 - 0.25 58.3 68.7 23.4 5.84
General Motors EV1 1996 0.19 3.96
Aptera 2e prototype 0.15 19.9 2.98
Volkswagen 1L Concept 0.15 39.6 49.2 11.0 1.65

 

[Jay3wheel]

The way I understand it, anything over a "1.0" drag coefficient would be as aerodynamic as my yard barn going down the road....with the door open.

Thank you both, now if I just knew which car, but again not a big dear. Also, shut the barn door,,,,,,

 

[BlioKart]

I think the Tesla is .24 which is the lowest for a production car.

 

[Jay3wheel]

I think the Tesla is .24 which is the lowest for a production car.

Well look who's in the rear view mirror!