[aerohead]

I'm trying to put this thread to rest.I've been on a circular quest which has left as many questions as answers.
As it turns out,more than one car was involved in the experiments,and rooflines came and went.
All Airflows shared sheetmetal behind the cowl,provided by the Edward G.Budd Co..
The SAE Paper dealt with the DeSoto Airflow 4-Dr Sedan.
By the time they had the Koenig-Kamm truncated tail,they had switched the roof to that of the Coupe,or secret Trifon 2-DR Sedan Fastback of 1932.I'll probably never know.
All the photographs of the car are actually the #2 Trifon Special,4-DR Sedan with quarter-windows,developed in total secrecy at Struble's Farm,200 miles north of Detroit.
Examination of the photos reveals an exposed B-Pillar post and doors with top and lower radius corners,not present in any of the production cars,be they Chrysler,Imperial,or DeSoto.
It is the Trifon ( named after Demetrion Trifon,Chrysler mechanic/test-driver )which sports the large 'stinger' boat tail which gave the roof and plan taper ( Jaray,Fachsenfeld,Lay,Kamm ) to get to Cd 0.23.
These 'Trifons' were registered as built-ups and so named to camouflage them from industrial espionage.
Also,not mentioned in the paper,was that the nose was extended forward approx. 7-inches and the stinger was only about 37-inches in length,not 44 as inferred in the paper.
A small photo shows the Trifon being loaded onto it's carrier van with clear dusting line at the aft-body,exactly where the streamlining mods picked up.
The dirt roads of the farm provided Breer with direct evidence of flow separation on the car's body.All he had to do is fill in the blanks 'til it disappeared.
It would take Kamm 4-years to catch up to Breer.