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Search: Posts Made By: newtonsfirstlaw
Forum: Aerodynamics 12-30-2007, 04:08 PM
Replies: 42
Views: 89,671
Posted By newtonsfirstlaw
Isn't CAFE standards at 27.5mpg? How far...

Isn't CAFE standards at 27.5mpg?

How far we've come...
Forum: DIY / How-to 12-30-2007, 12:44 AM
Replies: 32
Views: 38,164
Posted By newtonsfirstlaw
Update: Just did some more coast down testing and...

Update: Just did some more coast down testing and a couple hours worth of driving.

I guess I'll cut to the chase - using an average of all my figures, taking into account that I was going into a...
Forum: DIY / How-to 12-24-2007, 08:25 AM
Replies: 32
Views: 38,164
Posted By newtonsfirstlaw
DIY Rubber Front Wheel Skirts

I just finished the front skirts a couple hours ago. It took four hours. The first one took 2.5 hours, the last took 1.5 hours.
...
Forum: Hybrids 12-12-2007, 08:23 PM
Replies: 71
Views: 16,743
Posted By newtonsfirstlaw
Two points: 1. A hybrid (even mild hybrid) SUV,...

Two points:
1. A hybrid (even mild hybrid) SUV, driven at low speed pulse and glide, should be able to achieve 50mpg. The catch is, it would have to be driven at 60kph or less. Aeromodded, slightly...
Forum: Hybrids 12-12-2007, 05:12 PM
Replies: 71
Views: 16,743
Posted By newtonsfirstlaw
Maybe there's room for a position #5: Hybrid SUVs...

Maybe there's room for a position #5: Hybrid SUVs are a bad thing because there should be MORE SUVs.

Let me explain: the next extended fuel price shock causes SUVs to end up going back to China as...
Forum: Hypermiling / EcoDriver's Ed 12-09-2007, 10:02 PM
Replies: 16
Views: 7,423
Posted By newtonsfirstlaw
Exactly. It's very similar to terminal velocity...

Exactly. It's very similar to terminal velocity down a particular gradient. I'd forgotten that until creating my P&G calculator forced me go through the calculations. Ignoring driver and other weight...
Forum: Hypermiling / EcoDriver's Ed 12-09-2007, 06:49 PM
Replies: 16
Views: 7,423
Posted By newtonsfirstlaw
Absolutely. Ultimately, what we are...

Absolutely.

Ultimately, what we are attempting to do is minimize Delta E/ Delta s, or the net loss of energy over distance traveled. Since Delta E is the same as work, or Force * Delta s (force...
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