Quote:
Originally Posted by freebeard
246 people have looked at my Beetle Aerodynamics thread. Were you one?
This follows Breers more than the Template.
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Yes,I've wanted to keep up with the project.
With respect to the DeSoto Airflow test mule,Breer got it down from Cd 0.51 (very close to the Beetle),to Cd 0.244.Not too shabby for 1934.And this was actually the first "Kammback",a year ahead of Fachsenfeld,although the technology was not reported until just after the Pearl Harbor attack.
Lay found,in 1933,that an optimized windshield would deliver Cd 0.12 just as well as the 'ideal' windshield (as we see in Tamai's canopy drag table).Hucho infers that we can kinda cheat on the nose,but never the tail.
Hucho also cautions that if the glass is too steep,that all we'll see is a reflection of the dashboard top and our kneecaps.
Aerodynamically,your cowl/windshield is delicious,but potentially challenged optically.
A guy did a complete Plex bubble windscreen for his Mobil Economy Run car of the 1950s,and you can see some distortion looking through it into the car.
