Quote:
Originally Posted by Vman455
Here is the Cybertruck* profile:
And here's Bild 112:
They aren't even close to the same contour. The curve between two points can take literally any shape--as we can see here with one curve and one line--and "matching" two points doesn't tell us anything about the aerodynamics of this truck.
*First prototype; video leaked last month purports to show a second closer to production-ready. |
1) You'll need an image which better reflects CYBERTRUCK in true length fidelity.
2) Tesla Motors offers a long-distance, telephoto image of the chassis which is more dimensionally accurate. That's what I chose to work from.
3) Then one must represent CYBERTRUCK @ 8-inch ground clearance, which I've done, and is viewable at John Gilkison's You-Tube videos. No other extant photographs of CYBERTRUCK exist which represent the 8-inch GC configuration.
4) Only then can one do the proper x-ray overlay comparison, and I promise you that from CYBERTRUCK's roof apex, to the top of the tailgate, it's a perfect match to the FKFS contour I referenced. And I believe that I've already provided the necessary caveat about the traveling separation bubble which would occupy the void between CYBERTRUCK's upper aft-body surface and the FKFS geometry. Which may be a source of your dissonance.
5) As long as the flow is reattached by the time it leaves the vehicle, the profile has accomplished the aerodynamic pick and shovel work.
6) Fachsenfeld and Kamm found this during comparison tests between their segmented K-form, 'slope-top' half-body, and Walter Lay's 'straight-top' segmented half-body. You'll have all that in Fachsenfeld's book.
7) The same 'trick' is being approached with OEM tonneau covers on the RIVIAN R1T, Cadillac Escalade, RAM 1500 HFE, and Holden Commodore VT Ute.