Thursday, February 19, 2015

Days of old

Cooper was launched into space on May 15, 1963, aboard the Mercury-Atlas 9 (Faith 7) spacecraft, the last Mercury mission. He orbited the Earth 22 times and logged more time in space than all five previous Mercury astronauts combined—34 hours, 19 minutes and 49 seconds—traveling 546,167 miles (878,971 km) at 17,547 mph (28,239 km/h), pulling a maximum of 7.6 g (74.48 m/s²). Cooper achieved an altitude of 165.9 statute miles (267 km) at apogee. He was the first American astronaut to sleep not only in orbit but on the launch pad during a countdown.

Toward the end of the Faith 7 flight there were mission-threatening technical problems. During the 19th orbit, the capsule had a power failure. Carbon dioxide levels began rising, and the cabin temperature jumped to over 100 degrees Fahrenheit (38°C). Cooper fell back on his understanding of star patterns, took manual control of the tiny capsule and successfully estimated the correct pitch for re-entry into the atmosphere. Some precision was needed in the calculation, since if the capsule came in too steep, g-forces would be too large, and if its trajectory were too shallow, it would shoot out of the atmosphere again, back into space. Cooper drew lines on the capsule window to help him check his orientation before firing the re-entry rockets. "So I used my wrist watch for time," he later recalled, "my eyeballs out the window for attitude. Then I fired my retrorockets at the right time and landed right by the carrier." Cooper's cool-headed performance and piloting skills led to a basic rethinking of design philosophy for later space missions.

Gordo looks happy to be alive and in one piece.

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