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                                                                  V   X V
                                                                  Xx........  K’  FILE             DATE
                                                                                                      October 8, 1969
     TO - NAME                           DEPT.                       DIVISION                PLANT/OFFICE
        1 - NAME                         DEPT.                       DIVISION                PLANT/OFFICE
                W. P. Wright                 S&M Engineering                 Space                    Huntsville

                Special Performance Vehicle Work Summary

                The following tasks are being performed, have been proposed via IPA, or have been
                discussed for future efforts in support of the race car program.


                      A.     Wind Tunnel Testing of 3/8 Scale Model Dodge Charger Daytona

                             This program involved wind tunnel testing of a 3/8 scale model of the Dodge
                Charger Daytona prior to its mid year introduction. A long pointed front end extension
                was introduced to reduce drag and front end lift. A horizontal stabilizer was added to
                the rear with vertical fins to increase rear wheel loading and achieve a closer CG to
                CP relationship.

                      B.     Special Performance Vehicle Communication System

                             A communication system was developed using state-of-the-art developments
                in commercial EM radio, ballistic (bone) microphones, and acoustic insulation to allow
                successful communication between a high speed race car driver and the car pit area.
                The system has been successfully tested at high speeds on the Chelsea Track, the Dayton          -
                Speedway, Talladega Speedway, and Charlotte Speedway.

                      C.     Mobile Control Center and Race Scoring System

                             Utilizing a Dodge Motor Home as a motorized base for movement to track­
                side, a computerized race car lap scoring system has been developed.

                             The basic system obtains manual electrical inputs from observer controlled
                push buttons as each car completes a lap and/or a pit stop. A CE-16 computer is pro­
                grammed to accept these inputs and determine 15 car positions and time difference from
                lead car. The information is printed out each lap for display purposes. The system
                recognizes and denotes: green flag, caution flag, red flag, and checkered flag; also pace
                car position in car field, race time, number of laps raced, race length, and nominal lap

                             Races have been successfully scored at Darlington and Talladega.

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