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Old 05-04-2013, 03:01 PM   #601 (permalink)
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The Veyron has a total 10 radiators and intercoolers, so some interesting percentage of the total aero drag will be internal.

'Gaguar' LOL

The truck has a nice roofline but the front wheelwell sucks (or blows). That auxilary pump on a lawn service truck screams *Pesticides!*

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Old 05-04-2013, 09:14 PM   #602 (permalink)
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on the new open top bugatti there is no fender right behind the front wheel at all, the lower body panel tucks in there and you can see the back edge of the tire, must be for cooling
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Old 05-05-2013, 12:17 AM   #603 (permalink)
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ToyotaGT One TM1

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Old 05-06-2013, 09:34 AM   #604 (permalink)
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Originally Posted by aerohead View Post
We have them around this area also.It would be fun to speak with the purchasing manager 'n see what the motivation was for their choice in truck boxes.
And thanks for the photo,it's the first time to actually see the rig in true-length!
I did find a press release about the bodies. No mention of aero or fuel economy. If it were a designed in feature you sure think they'd mention it. You wouldn't think these trucks do a lot of highway driving where the benefits would really be seen, but there are certainly a lot of companies out there bragging about less.

Supreme Corp release

It MUST be better than a totally flat roof, but certainly could have been even better with some taper on the sides, and...
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Old 05-06-2013, 11:30 AM   #605 (permalink)
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An article on Isuzu truck here.
Isuzu NPR ECO-MAX Trucks Return from Nationwide Tour - Top News - Vehicle Research - Top News - Automotive Fleet

More Photos:
https://www.facebook.com/isuzutruck


Other aero-designs here:
Supreme Corporation | ISUZU | AERO Body

PDF's here: but not on the body style I was looking for.
Supreme Corporation | ISUZU | AERO Body | Downloads
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Old 05-06-2013, 05:03 PM   #606 (permalink)
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Quote:
Originally Posted by ennored View Post
I did find a press release about the bodies. No mention of aero or fuel economy. If it were a designed in feature you sure think they'd mention it. You wouldn't think these trucks do a lot of highway driving where the benefits would really be seen, but there are certainly a lot of companies out there bragging about less.
Could it be that sheer cargo volume / rear opening size isn't such a big point for this (kind of) company ?

In the logistics world, they won't be happy with less volume or smaller rear doors.
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Old 05-06-2013, 10:58 PM   #607 (permalink)
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Perhaps a large part of the cargo space is filled with pesticide tanks, making the space more usable to them than, say, a moving company. Plus, the unique shape can only help with branding. Remember the jingle, "Autoglass Specialists- the guys in the little red trucks"? Or the NAPA trucks with baseball hats on the top of the cabs? It's memorable.
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Old 05-08-2013, 08:54 PM   #608 (permalink)
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What about the windshield on the 80's era Saab's always thought they looked cool with all that curvature,
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Old 05-09-2013, 07:54 PM   #609 (permalink)
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The Saab 99 debuted in 1968 with all that plan view curvature. It was meant for aerodynamics, as was the sharply cutoff Kamm-style roofline of the notchback, and later, the coupe combi.

The 1967 (preproduction) Saab 99 notchback was 0.37 Cd, only matched by the Citroen DS (1955), and its distinctive curved windshield also helped significantly in reducing drag in side winds.*

You will notice that although the designers knew about flow detachment, as they had since Kamm's work, they did not go all the way in extending and/or extending the roof surfaces. The DS's flow detaches halfway back on the roof instead of where you'd expect at the rear window.

The Sonett III acheived 0.31 Cd according to my 1972 Saab brochure.

Saab lengthened and retrimmed the 99 into the 900 line in the late 70's- I have to imagine the aero only got better once they started adding air dams, flush headlights and flatter wheels. The 900 Aero and SPG (Sports PackaGe) trim levels added more goodies like side skirts and suspension upgrades.

*Source: "Saab 99 and 900: The Complete Story" by Lance Cole. In this 2007 printing the 99's aerodynamics are discussed on pages 38-39.

Like the 92-93-95-96 line, Saab by necessity made the basic 99 platform last for over 20 years. And the turbo's were still a blast to drive!

1968 Saab 99


Early 90's Saab 900 SPG
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Old 05-09-2013, 08:49 PM   #610 (permalink)
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Couldn't find that DS wind tunnel pic, but this surfaced. Haha


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