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kach22i · 05-28-2013, 12:34 PM

Most of the time when we get a nice flowing canopy on a car such as the +2005 Mustangs or the F-Body Camaro's we in the forum can generally agree not to mess with it in an attempt to Kammback it, because close enough is good enough, right?

Is the below VW XL1 an example of this?

Automobile 2 - Odds And Ends Photos by kach22i | Photobucket

I suspect there is an algorithm or something which can be used when scaling down the template to conformity, in essence saying (by a measure of scale), that when you scale down the template you scale down your measure of success by "X" amount.

Either that or by measuring the volume or space not within the template 3D shell, one could calculate the percent or an actual number one will suffer losses as compared to the ideal template.

I don't need anyone to agree with me with what I see in these exercises, I know what I see. I will however eventually find the answer or the reasoning over time for what I see in these exercises.

So far the reasoning given by others or excused in absence leaving me to wonder, is not satisfying at all.

In my humble opinion, one cannot, and should not attempt to 2D fit a 3D template, and certainly one demanding more explanation than simply lining up with the highest point on the roof as this one.

NOTE: I used the two best images of the XL1 which I could find, one seems to have a slightly longer nose.

Will someone please post the Cd number the idealized 3D aerodynamic Template-C is supposed to give us?

05-28-2013, 12:34 PM	#16 (permalink)
kach22i Master EcoModder Join Date: Jul 2011 Location: Ann Arbor, Michigan Posts: 4,187 Thanks: 132 Thanked 2,810 Times in 1,973 Posts	Most of the time when we get a nice flowing canopy on a car such as the +2005 Mustangs or the F-Body Camaro's we in the forum can generally agree not to mess with it in an attempt to Kammback it, because close enough is good enough, right? Is the below VW XL1 an example of this? Automobile 2 - Odds And Ends Photos by kach22i \| Photobucket I suspect there is an algorithm or something which can be used when scaling down the template to conformity, in essence saying (by a measure of scale), that when you scale down the template you scale down your measure of success by "X" amount. Either that or by measuring the volume or space not within the template 3D shell, one could calculate the percent or an actual number one will suffer losses as compared to the ideal template. I don't need anyone to agree with me with what I see in these exercises, I know what I see. I will however eventually find the answer or the reasoning over time for what I see in these exercises. So far the reasoning given by others or excused in absence leaving me to wonder, is not satisfying at all. In my humble opinion, one cannot, and should not attempt to 2D fit a 3D template, and certainly one demanding more explanation than simply lining up with the highest point on the roof as this one. NOTE: I used the two best images of the XL1 which I could find, one seems to have a slightly longer nose. Will someone please post the Cd number the idealized 3D aerodynamic Template-C is supposed to give us? __________________ George Architect, Artist and Designer of Objects 2012 Infiniti G37X Coupe 1977 Porsche 911s Targa 1998 Chevy S-10 Pick-Up truck 1989 Scat II HP Hovercraft You cannot sell aerodynamics in a can............ Last edited by kach22i; 05-28-2013 at 12:40 PM..