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Forum: Aerodynamics 10-23-2021, 11:23 AM
Replies: 11
Views: 1,506
Posted By The Toecutter
All fair points. But you must consider that...

All fair points.

But you must consider that it is the upper 20% of income earners driving new car sales and trends. THAT is the demographic that wants all the oversized, overweight/ comfortable...
Forum: Aerodynamics 07-21-2021, 03:58 AM
Replies: 104
Views: 8,475
Posted By JulianEdgar
Thank you

I have been told that, if I am to continue posting here, I am not to address any posts that Aerohead makes. That is unacceptable to me, because unfortunately Aerohead is the greatest source of...
Forum: Aerodynamics 05-29-2021, 12:37 PM
Replies: 20
Views: 5,082
Posted By vianney
eNV200 aero mods

Hi !

I am new to this forum, a few words about me:
French engineer working in satellites industry near Toulouse.

Recently bought an EV, Nissan eNV200 Evalia (40kwh) to drive all the family...
Forum: Fossil Fuel Free 12-14-2020, 07:59 PM
Replies: 680
Views: 60,055
Posted By freebeard
Someone said easy to park? Folding Electric...

Someone said easy to park?

Folding Electric (3 wheeled) Car from 1920s (https://www.youtube.com/watch?v=dENBYI3j3eE)
Forum: Aerodynamics 11-01-2020, 08:07 PM
Replies: 156
Views: 31,592
Posted By CigaR007
I did some tuft testing on the CR-Z this weekend....

I did some tuft testing on the CR-Z this weekend. Here is the first part of the series.

https://www.youtube.com/watch?v=mg1l22988_Y


As expected, the flow is very turbulent. Next step will be...
Forum: Fossil Fuel Free 10-20-2020, 10:18 PM
Replies: 49
Views: 3,587
Posted By freebeard
Fall of 2021. They say there are two...

Fall of 2021. They say there are two opportunities Be first or best best.

By Fall of 2021 the Austin Gigafactory could be up and running.
Forum: Aerodynamics 08-03-2020, 07:08 AM
Replies: 44
Views: 6,206
Posted By ACEL
Unexpected front bumper cover modification

I have been looking at Tesla model 3 for sometimes and scratching my head about the shape of its nose. Some newer Ford Mustang also rode my street. These cars have something in common! The upper...
Forum: Aerodynamics 07-26-2020, 09:06 PM
Replies: 44
Views: 6,206
Posted By ACEL
Drag coefficient evaluation

I read somewhere :

“The Effect of Aerodynamic Drag on Fuel Economy”
Aerodynamic drag is proportional to the square of velocity, and hence the power needed to overcome drag is proportional to the...
Forum: Success Stories 06-24-2020, 09:19 PM
Replies: 25
Views: 5,692
Posted By funkhoss
Sure! There's one additional factor that...

Sure!

There's one additional factor that wasn't on my list of "mods" that I'll mention before I do: we run ethanol-free gas 100% of the time. We live in a very rural area, but it turns out that...
Forum: Success Stories 03-20-2020, 10:47 PM
Replies: 7
Views: 1,527
Posted By Fat Charlie
Yep, my Fit's utility trailer beats the pants off...

Yep, my Fit's utility trailer beats the pants off a full size pickup. And I don't have to lug it around when I'm not hauling. You may someday thank that drunk. Just don't do it where he can hear.
Forum: Aerodynamics 03-07-2020, 05:13 AM
Replies: 24
Views: 2,958
Posted By wdb
My 2008 Honda Fit got pushed around by the wakes...

My 2008 Honda Fit got pushed around by the wakes of semis, strong sidewinds, and the like. Then I put a Beatrush undertray on it and, to my surprise, it all went away. Smoothing out the airflow under...
Forum: Fossil Fuel Free 03-06-2020, 04:02 PM
Replies: 1
Views: 888
Posted By aerostealth
Model X towing a Bowlus naked and with aeromods

https://youtu.be/w6TNeUlxVsA

Just posted this video today of the case specific towing situation of a Tesla Model X towing a Bowlus naked then with aeromods to reduce the energy consumption by 30%....
Forum: Fossil Fuel Free 02-29-2020, 02:20 PM
Replies: 592
Views: 42,861
Posted By aerohead
flares

The thing about the flares is,that they could produce a 'Whitcombe-waisting/Coke-bottling/sectional density/area-rule' effect,actually mitigating pressure spikes down the side of the body;which is...
Forum: Aerodynamics 02-26-2020, 12:46 PM
Replies: 19
Views: 1,635
Posted By aerohead
'Cybertrucking' the 2019 RAM(TFL cars.com)

So on the 24th,Elon Musk announced Cd 0.30 for Cybertruck,and narrowing to 82-inches.No mention about mirrors.
If you could get a long-bed,standard cab RAM,then, a Brett Herndon' Aerolid,Herndon'...
Forum: Fossil Fuel Free 02-03-2020, 04:49 PM
Replies: 14
Views: 1,485
Posted By freebeard
https://cdn.motor1.com/images/mgl/bXwlM/s3/gmc-hum...

https://cdn.motor1.com/images/mgl/bXwlM/s3/gmc-hummer-electric-pickup-truck-render.jpg

This reminds me of a VW Beetle with a Rolls-Royce hood and grille. As aerohead says, they need to go all...
Forum: Fossil Fuel Free 02-01-2020, 12:34 PM
Replies: 14
Views: 1,485
Posted By redpoint5
I'd love if the expense and bulk of batteries...

I'd love if the expense and bulk of batteries created a fundamental shift towards form following function. Our aesthetic tastes are malleable, so it is us that should change what we consider...
Forum: Fossil Fuel Free 02-01-2020, 12:31 PM
Replies: 14
Views: 1,485
Posted By aerohead
clean sheet

The more I think about Cybertruck,the more I'm inclined to believe that,the only way to compete with it,would be to build a truck which looks very much like it.There are no magic tires for a rolling...
Forum: Fossil Fuel Free 01-25-2020, 01:40 PM
Replies: 14
Views: 1,485
Posted By aerohead
Unobtainium at GM

So,the H1 is Cd 0.70.The H2 is Cd 0.57,And the H3 is Cd 0.51,while the Cybertruck might come in at Cd 0.28.But because it's 'GM' building it,they've arranged some special exemption with Yahweh,...
Forum: Fossil Fuel Free 01-09-2020, 12:23 AM
Replies: 79
Views: 4,752
Posted By ME_Andy
The reason I won't buy Ford is that the...

The reason I won't buy Ford is that the Cybertruck is a massive threat to Ford's bread and butter, IMO.
Forum: Fossil Fuel Free 12-26-2019, 02:58 PM
Replies: 592
Views: 42,861
Posted By redpoint5
I wonder, in that Tesla/trailer stunt, did they...

I wonder, in that Tesla/trailer stunt, did they calculate the most time efficient speed to travel?

In ICE vehicles, there is no practical limit to speed vs efficiency with regard to time. Going...
Forum: EcoModding Central 12-08-2019, 01:42 PM
Replies: 23
Views: 4,780
Posted By Vman455
I like these cars--I thought about getting one...

I like these cars--I thought about getting one when I bought my Prius, and sometimes I wish I did just to have a manual transmission again.



Just a terminology note: "wheel skirt" usually...
Forum: Aerodynamics 12-05-2019, 05:52 PM
Replies: 39
Views: 5,009
Posted By The Armadillo
Thanks Kach22i! There is no flapping or ripples...

Thanks Kach22i! There is no flapping or ripples that I am observing. My fabrication and sewing wasn't perfect, so when it is at rest, it is a little loose. But, once I get moving through the air it...
Forum: Fossil Fuel Free 12-02-2019, 01:39 PM
Replies: 592
Views: 42,861
Posted By aerohead
champfers

The Cybertruck caused me to dig into the S.R.Ahmed body research,1984,and that of P.W.Bearman et al,from 1982 (SAE Journals and Transactions).
Between the two,you can almost 'build' the...
Forum: Fossil Fuel Free 11-28-2019, 07:38 AM
Replies: 592
Views: 42,861
Posted By RedDevil
I still really don't like the top of the cabin. ...

I still really don't like the top of the cabin.
The argument for keeping everything angular was to be able to use flat panels of steel.
But the cabin roof is made of glass... Gently curving the...
Forum: Fossil Fuel Free 11-27-2019, 11:40 PM
Replies: 592
Views: 42,861
Posted By freebeard
https://media.licdn.com/dms/image/C4D12AQFGUudI6a9...

https://media.licdn.com/dms/image/C4D12AQFGUudI6a9bOg/article-inline_image-shrink_1500_2232/0?e=1580342400&v=beta&t=4chtZx63fQnvX3v-EDBDswPO9XCDwTWZ23VHdTkypE0...
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