Encyclopedia Astronautica
1960.10.03 - Third Mercury centrifuge training program

The third Mercury centrifuge training program was conducted for the astronauts at the Aviation Medical Acceleration Laboratory.

This was considered the final major centrifuge training preparation for the first manned Mercury-Redstone flight. No difficulties were encountered; a decided improvement in the performance of 3-axis hand-controller tasks by the astronauts was noted. The Mercury-Redstone 3 (MR-3) flight activities were adhered to as closely as possible - actual spacecraft couches were used, a production hand-controller assembly was installed, the latest model pressure suits were worn, and the environmental control system was equipped with a freon coolant. Failures in spacecraft sequencing were introduced which required the astronaut to initiate an appropriate manual override.

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