8/28/2023 0 Comments 1935 chrysler airflow trimsThe paper lists seven (7) discreet aero-modding permutations within a table,along with the top speed achieved,and mpg,before and after the final mods. "Aviation Handbook," E.P.Warner and S.Paul Johnston,McGraw-Hill Book Co.,Inc.,1935 "Engineering Aerodynamics," W.S.Diehl,Ronald Press,1935 Original drag data is given in the form of a K-value,borrowed from : The paper gives a breakdown of the methodology used to quantify results.Ĭhrysler did experience wide discrepancies between windtunnel results and actual on-road performance.Top speed runs were made,throttle-stop runs were duplicated on the dynamometer,and coasdowns were performed when weather allowed. On June 4,1941 James C.Zeder,Chief Engineer for Chrysler,and brother of Fred Zeder,one of the 'Three Musketeers',responsible for the Airflows development,presented a paper on the aero-modding at SAE's semi-annual meeting and in December,after the attack at Pearl Harbor,Hawaii,the work was published as SAE Paper # 410139 "Is It Practical to STREAMLINE for FUEL ECONOMY?" In 1939,Chrysler researchers,W.E.Zierer and J.B.Macaulay,Jr.,revealed that they had achieved up to a 50 % drag reduction through aero-mods. The 1934 DeSoto Airflow sedan is reported by Chrysler at Cd 0.546.( Cd 0.675 was typical for cars of this period ).Īfter the Airflow went on retail sale Breer and his team continued to experiment with aero-modding.By 1934-1/2 Breer had achieved significant results. The 1933 DeSoto sedan which served as the comparative baseline for the Airflow scored Cd 0.683 'forwards',and Cd 0.546 'backwards.' Testing revealed that automobiles had lower drag,went faster,and got better mpg when going backwards. Soon,Chrysler built a larger tunnel in Highland Park,Michigan and Breer became directly involved. The car was designed by Chrysler's chief of research Carl Breer,who's interest in automotive aerodynamics dates to 1927.īreer hired Dayton engineer Bill Earnshaw who together with Orville Wright developed a small windtunnel to do model tests. Between 19,Chrysler produced the 'Airflow,'which sold as a Chrysler,DeSoto,and Imperial.
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