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Old 01-03-2011, 07:43 PM   #9 (permalink)
Frank Lee
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Join Date: Jan 2008
Location: up north
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Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
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I'd suggest modelling after the proven aero cars like 1L, any of the Probes or PNGVs, whatever. I don't think the man on the street is going to do better by eye than a professionally engineered, wind tunnel refined design. As you contemplate this more you may realize more of the shortcomings and unacceptable functionality compromises your current proposal has- better to consider them now, before you've invested time/effort/money building something.

Here's a lil thought experiment: I appears as though the driver's eyes will be about 6 feet away from the windshield. Maybe the effect can be approximated by sitting in the back seat of a TransPort dustbuster van and imagining driving it from there...

Another aspect is, you don't want sharp leading edges. Those A-pillars are going to have to change.

How about some boat-tailing- surely there are x-winds where you drive?

Ground clearance? Ramp angles for driveways and such? Solar gain? Reflections in the glass?
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