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Search: Posts Made By: Auptimist
Forum: Fossil Fuel Free 11-29-2019, 12:39 PM
Replies: 592
Views: 42,252
Posted By Auptimist
That study... I'm no Tesla fan (this truck is...

That study... I'm no Tesla fan (this truck is blatant greenwashing combined with bourgeois escapism) but I don't believe that 0.48 Cd for a second, they definitely screwed that up. Here's another one...
Forum: Aerodynamics 12-23-2017, 08:24 PM
Replies: 67
Views: 9,503
Posted By Auptimist
Since range is such a sticking point for EVs,...

Since range is such a sticking point for EVs, especially with these big rigs, they really could benefit from a transmission, even if it's just a simple 2-speed DCT to switch over at highway speeds. I...
Forum: Aerodynamics 05-11-2017, 03:16 AM
Replies: 27
Views: 6,060
Posted By Auptimist
I'd be interested to see an A-B-A test of the...

I'd be interested to see an A-B-A test of the taller, more gently curved topper that follows that damn template exactly versus the 12° average slope version suggested by that one engineering thesis....
Forum: Aerodynamics 05-01-2017, 03:37 PM
Replies: 39
Views: 7,960
Posted By Auptimist
The blue curve section should be near 12° but I...

The blue curve section should be near 12° but I wouldn't put too much faith in those templates (don't fight me on this, guys, I'm sure they're great...). I would just measure the cab height and do...
Forum: Aerodynamics 05-01-2017, 12:05 AM
Replies: 39
Views: 7,960
Posted By Auptimist
I talked to a local plastics manufacturer who...

I talked to a local plastics manufacturer who suggested using polycarb rather than acrylic because it's waaay more durable and easier to drill into. Hail damage is a strong consideration, as well as...
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