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1978, D-B, M-B C-111 III elongation vs Cd
Please scroll down to # 15 (permalink ) to see delta-Cd as a function of rear elongation. Boat-tailing is the only modification being accomplished.
https://ecomodder.com/forum/showthre...c-27257-2.html
The 'short-tail', @ Cd 0.237 is similar to the IONIQ.
The 'mid-tail', @ Cd 0.195 is close to your target.
Looking from above, in plan-view, the tail introduces the side boat-tailing you need to complement changes to the roofline and diffuser area.
Here's another source, including images from above the C-111
https://www.car-revs-daily.com/2014/...benz-c111-iii/
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Last edited by aerohead; 04-11-2022 at 06:08 PM..
Reason: add photo data
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