Schirra, Walter ("Wally") Marty, Jr. (1923–2007)
Early yearsWalter Schirra was born at Hackensack, New Jersey on March 11, 1923. Schirra's father was a World War I ace in the Army Air Corps, and following the war he and his wife barnstormed throughout the United States in a light plane.
Schirra attended primary and junior high schools at Oradell, New Jersey. He graduated from Dwight Morrow High School, Englewood, New Jersey, in 1940 and attended Newark (New Jersey) College of Engineering for one year before entering the US Naval Academy. He graduated from the Academy in 1945.
He had service on board the battle cruiser Alaska, on the staff of the Seventh Fleet, flight training at Pensacola, Florida, Naval Air Station, in Navy Fighter Squadron 71, and as an exchange pilot with the 154th Fighter Bomber Squadron. He went with that squadron to Korea where he flew 90 combat missions in F-84E aircraft.
Later, he took part in development of the Sidewinder missile at China Lake, California. He was project pilot for the F7U-3 Cutlass and instructor pilot for the Cutlass and FJ3 Fury.
Schirra flew F3H-2N Demons as Operations Officer at Fighter Squadron 124 on board the carrier Lexington in the Pacific. He then attended Naval Air Safety Officer School at the University of Southern California, followed by test pilot training at the Naval Air Test Center, Patuxent, Maryland.
His last assignment, prior to being chosen a Project Mercury astronaut, was at Patuxent in suitability development work on the F4H. In total he logged more than 3,200 hours of flying time including more than 2,000 hours in jet aircraft.
Schirra's Mercury flight
The flight itself, termed by Schirra after his return to the United States a "textbook flight," followed a plan which was actually a compilation of input of engineering, operations, and medical personnel, integrated into a single plan, and accepted and carried out by Schirra.
Principal benefits from the six-orbit mission were the development of operational techniques and procedures which are directly applicable to manned one-day missions. Schirra maintained a close check on the environmental control system, and, according to him, the pilot control of the systems in an effort to control use of fuel was proven and suit temperature no longer presented a problem.
Another benefit was the experience with the attitude control with changes incorporated in the MA-8 flight. Both the low thrusters (one-pound) and high thrusters (24-pound) performed perfectly when called upon by the pilot.
Schirra went through a period of more than nine hours of weightlessness without nausea or other ill-effects. His flight provided invaluable information concerning the extended phases of drifting flight which would be used extensively in the one-day mission.
The Sigma 7 spacecraft attained a speed of approximately 17,560 miles per hour, a perigee (low point of orbit) of 100 miles, and an apogee (high point of orbit) of 176 miles.
Project Mercury, as a result of information gathered from schirra's flight, the preceding three-orbit flights of astronaut's John H. Glenn, Jr., and M. Scott Carpenter, and the sub-orbital flights of Alan B. Shepard, Jr. and Virgil I. Grissom, was now ready to move onward to its last planned phase of the investigation of space – manned one-day missions.
Related category ASTRONAUTS AND COSMONAUTS
Source: "The Six Orbits of Sigma 7: Walter M. Schirra's Space Flight," NASA Manned Spacecraft Center, October 3, 1962
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