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space division CHRYSLER
                                                                                                 CORPORATION



                B.      OBJECTIVES


                        The objectives of this program are to plan and organize a test program to perform
                automotive aerodynamic testing of vehicle exterior components and shapes including external
                and internal cooling system configurations. The tests will be supervised in a wind tunnel
                facility selected on a competitive comparison basis. The test program results will be eval­
                uated and organized into an illustrated and simplified handbook type report which may be used
                by styling personnel during the early phases of vehicle planning.


                         1.     Study:

                                The study phase objective will be to review and compare available wind tunnel
                facilities, instrumentation techniques, models, etc., and compare for cost, accuracy, avail­
                ability, etc., and select a mutually suitable site or sites and prepare a users agreement.

                                 Existing wind tunnel facilities capable of testing 3/8 and full scale automobile
                 models will be evaluated to determine availability, accuracy, cost, etc., in order to select
                tunnel or tunnels suitable for aerodynamic testing. The objective in this study will be to
                 select a tunnel or combination of tunnels for testing which can give the most accurate infor­
                 mation required at the lowest overall cost.

                                Instrumentation systems and techniques used by the various facilities will be
                 analyzed and evaluated as part of the total study.

                         2.      Model Design:


                                 Existing models will be analyzed to determine the most suitable ways of mod­
                 ifying elements for quick change or by the use of segmented components reduce tunnel down
                 time for model configuration changes.

                                 New model design materials and techniques will be evaluated to determine
                 faster or cheaper construction techniques to expedite testing.


                                 Scale models other than 3/8 will be analyzed to allow possible crosswind
                 testing in the smaller facilities.


                         3.      Test Phase:

                                 The objective of the test phase is to perform scale model or full scale test­
                 ing on basic styling configurations and incorporate subtle styling changes during or between
                 test runs to gather comparative test data on primary aerodynamic performance.

                                 Model configurations will be varied by changing external components (internal
                 in the case of cooling systems) and varying test conditions to determine the optimum aero­
                 dynamic configuration with a given basic styling design.




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