Page 1 - Combined_70_OCR

INTER COMPANY CORRESPONDENCE

DRAFT
FILE DATE
August 28, 1969
CODE
TO - NAME DEPT. DIVISION PLANT/OFFICE
H. Bader, Jr. S&M Engineering Space Huntsville
FROM - NAME DEPT. DIVISION PLANT/OFFICE
W. P. Wright S&M Engineering Space Huntsville

TRIP REPORT TO TALLADEGA, AUGUST 20-25, 1969
SUBJECT:

The writer, H. H. Miller, J. E. Vaughn, and H. R. Killen supported the

Engineering Circuit Racing Group tests at Talladega Raceway, August 20-25, 1969.

The Dodge Daytona race car was instrumented at Huntsville prior to the tests

and vehicle calibrations performed at the track. The following parameters were

ins trumented:

1. Shock absorber travel (4 wheels)

2. Yaw angle

3. Steering wheel position

4. Acceleration (3 axis)

5. Wheel speed (right ron
6. Carburetor inlet pressure

7. Engine RPM
8. Engine Vacuum

9. Event Marker
In addition the radio was installed for two-way communication to driver.

Problems were encountered with the radio due to a low signal or volume level
from the car and interference from ignition as well as the measurement system and

recorder power supplies. The GE radio service man came by the track on Sunday,

August 24, and adjusted the car radio to increase the signal level which was a

c n ignificant improvement. Since the helmet provided fit only one driver (not present)

the drivers would not wear the radio helmet for critical high speed runs. The radio

was then transferred to the standard Charger 500 race car/inot instrumented and used

84- 1 10- 7879 REV. 1-63