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INTER COMPANY CORRESPONDENCE

                                                                                                  DATE
                                                                                                      April 22, 1970
                                                                              CODE
     TO - NAME                           DEPT.                       DIVISION                PLANT/OFFICE
                  W. P. Wright                     4190                     Space                     Huntsville
     FROM - NAME                         DEPT.                       DIVISION                PLANT/OFFICE
                  H. R. Killen                     4190                     Space                    Huntsville

                   Trip Report, to All American Racers, Santa Anna, California, For Instrumentation
                  of Trans/Am Barracuda






                           During the week ending 28 February 1970, the writer prepared an instru­
                  mentation system for use on an AAR Trans/Am Barracuda to be tested at Riverside
                   International Raceway. On 5 March 1970, the writer departed Huntsville for AAR
                   Inc., in Santa Anna, California, to install the instrumentation system and operate
                  this equipment during the Riverside test.


                           The following measurements were included in the proposed instrumentation
                   system:


                           H     Engine RPM

                           M     Propeller Shaft RPM
                           W     Right and Left Front Suspension Displacement
                                 Yaw
                                 Longitudinal Acceleration
                                 Lateral Acceleration
                           7. Steering Wheel Position


                           The instrumentation system was installed on the race car on 6, 7, and 8
                   March in preparation for testing scheduled 9 March 1970. Several modifications
                  were necessary due to design differences in the Trans/Am car as compared to
                   Grand National Cars. The writer was unable to install the front wheel suspension
                   displacement transducers due to severe space limitations. The vehicle battery was
                  found to be inadequate for the instrumentation systems power requirements and an
                   additional battery had to be installed in the trunk area.

                           On Sunday, 8 March, it was reported that the race car’s engine had failed
                   during dynamometer testing. This failure postponed the car testing until the coming
                  weekend.

                           While waiting for engine repair (9-12 March), the writer attempted again to
                   install the front suspension displacement transducers; however, the effort was
                   abandoned due to space and equipment (transducer) limitations. Dueing this time
                  the writer also made modifications to the instrumentation system for easier and
                   more reliable operation. The race car was sent out to be painted during this time.











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