First Electric van boat tail

[Logic]

Originally Posted by aerohead

I'm not your 'boy', and I'm way past caring anything about what you think.

Ditto! At last we agree on something!
But; you do seem to be under the illusion that what you say is above reproach and that everyone just considers it fact.
I dont. And feel sorry for anyone who does.

Originally Posted by aerohead

Your own search will uncover 17- energy charts from the EPA, NEDC, WLTC, and CLTC test cycles.
Ricardo Engineering has published additional charts related to a 'SULTAN' Model they employ, reported in 212-peer-reviewed papers.

My own quick (re)search uncovered this easy to assimilate data, that does not require analyzing energy charts.
But perhaps tonnes of difficult to assimilate data (Assuming anyone felt like it) is exactly what's required to sound like the above reproach, god of knowledge..?

• Roughly 1.2 Billion (Bn) vehicles operate on the planet every day. (AAA)
• Every day, there are some 70 Million (M) worldwide driving trips.
• The average trip duration globally is 15 minutes long.
• The average trip distance globally is 15 Kilometers / 9.3 miles.
• The average speed globally is 30 km/h (or) 18.6 mph. [Which doesnt sound very 'highway' does it!?]
  https://movotiv.com/statistics

Originally Posted by aerohead

Then, you might want to wake up and look around to notice a dearth of 'Charts' for:
* Hybrids, especially VOLVOs which were 'INCREASED' in weight to 'OPTIMIZE' regenerative braking energy. Vman455 can tell you all about it.
* Plug-in hybrids
* EVs

Wakey-wakey! For your early morning convenience I have highlighted pertinent points to read like a short, easy to understand sentence.

The amount of energy an EV recovers through recuperation depends on a few key things. Heavier vehicles may consume more energy to accelerate, but their momentum helps them generate more electricity during braking.
Similarly, electric motors with higher power ratings are better at converting braking energy back into electricity.
Additionally, the best time to maximize recuperation is in city driving.
Constant stopping and starting gives the system lots of opportunities to recapture energy. Recuperation is less effective on highways with their consistent speeds and limited braking.

To illuminate these factors, the German automobile club ADAC conducted a fascinating experiment.
They tested three EVs - the nimble Dacia Spring, the luxurious BMW i7, and the best-selling Tesla Model Y Long Range - on an uphill and downhill route.
Not surprisingly, the hefty BMW i7 came out on top in downhill energy recovery.
However, the lighter Dacia Spring turned out to be the most efficient overall during the mountainous journey.
This underscores the delicate balance between energy consumption and recuperation – while heavier EVs may recover more, they also need more power to move in the first place.

Beyond mountainous routes, how do EVs fare in regular driving? Data from Green NCAP reveals that - on average, an EV recaptures around 22% of its driving energy through recuperation. Standout EVs like the Nio ET7 and Hyundai Ioniq 6 boast impressive figures of 31% and 29%, respectively.

While recuperation partially offsets the energy penalty of heavier EVs, it emphasizes the potential of lightweight construction.
Innovative materials and designs hold the key to maximizing EV efficiency.
Reducing a vehicle's weight is similar to giving your EV a continuous energy boost, both when accelerating and while using recuperation.
https://www.arenaev.com/road_test_re...-news-3326.php

Originally Posted by aerohead

Then, you might want to 'lift' some epoxy-honeycomb sandwich panel or compound-surface carbon-fiber structures and 'cry' when you realize the total lack of weight penalty of add-on aero structures.
If you're ever in the USA, a good place to look will be Reno, Nevada, and ABARIS TRAINING. They offer a fine advanced composites course there.
https://www.abaris.com/

Might..!?
No might: As a builder of experimental aircraft and sailplanes I have.
I have done those courses and I am perfectly aware of just how surprisingly light and strong honeycomb between sheets of glass or carbon fiber is.
But from what I have read; that is NOT what most all aero mods here or even by car makers are constructed of.
I'd ask for proof of such construction here, in the form of a link, but we all know that's not going to work. In fact; some may begin wonder if you are capable of such!?

One last thing:
You seem to be under the impression that everyone in Africa lives in a hut and that education does not go much further than some lines drawn in the dirt.
That may well be true in the New South Africa, but let me leave you with this:


That may look like the US Apache, but it is in fact a 'Old South Africa' Rooivalk helicopter which came out well before the the Apache, back when 1 SA Rand cost over 5 USD.

[freebeard]

"Is there an echo in here?" -- Firesign Theatre

The average speed globally is 30 km/h (or) 18.6 mph. [Which doesnt sound very 'highway' does it!?]

Some freeways at some times? Yes.

Edit:

You seem to be under the impression that everyone in Africa lives in a hut and that education does not go much further than some lines drawn in the dirt.

In the South of Africa they have rat rods. Rat Rod Road Trip & Cape Town Car Show - 2025 Street Rod Nationals. Well, at least four or five.

[Piotrsko]

Just got back from down under. Casual notice is that they seem to be very similar to people from SMELL-A, San Fran, Boston, Chicago, Toronto, NYC (insert city of your choice here) to which I am familiar to. Suspect the towns in S Africa to be much the same, but need to visually verify. Hate to rely of 3rd hand observations of others; they seem somewhat biased

[Logic]

Originally Posted by Piotrsko

Just got back from down under. Casual notice is that they seem to be very similar to people from SMELL-A, San Fran, Boston, Chicago, Toronto, NYC (insert city of your choice here) to which I am familiar to. Suspect the towns in S Africa to be much the same, but need to visually verify. Hate to rely of 3rd hand observations of others; they seem somewhat biased

Only one real way to really know:
Go there/Come here = see for yourself. (as ever)

[Logic]

Originally Posted by freebeard

"Is there an echo in here?" -- Firesign Theatre

LOL!
I have seen through the thin veil of (wind tunnel) smoke..?

Originally Posted by freebeard

Some freeways at some times? Yes.

Clogged freeways and traffic jams are yet another example of where weighty aero wont help.
They are also a great advert for EVs and more so Series Hybrids when think about it!