He trained at Stallings Air Force Base, North Carolina, Bryan Air Force Base, Texas, and Nellis Air Force Base, Nevada, completing advanced work in April 1954. He went to the Pacific with the 8th Fighter Bomber Group and was promoted to First Lieutenant in May 1955. He returned for pilot duties at Suffolk County Air Force Base, New York, serving until April 1958 when he took the electrical engineering course at the U.S. Air Force Institute of Technology at Wright-Patterson Air Force Base, Ohio.

He was promoted to Captain in January 1960 while on duty at Edwards Air Force Base, California, as an electrical engineer. In November 1960 he went to Maxwell Air Force Base, Alabama, to attend Squadron Officer School and returned to Edwards as an experimental test pilot in the Fighter Projects Office. He had about 2,800 hours flying time in jets. He reported to NASA's Manned Spaceflight Center in Houston, Texas, January 7, 1964 and subsequently became a Gemini 9 Astronaut. 

He died with fellow Astronaut, Elliott M. See, Jr., when their T-38 jet aircraft crashed on approach to St. Louis, Misouri, on February 28, 1966.

One bright winter morning, the last day of February 1966, the Gemini IX foursome checked into Ellington Air Force Base, Texas, for flight clearance to St. Louis in two  ual-seat T-38 jet aircraft.  They planned to spend several days practicing on the rendezvous simulator at the McDonnell plant.

At Ellington, the four fliers learned that weather in St. Louis was gloomy: 180-meter overcast, visibility 3 kilometers, rain, and fog, with little change expected. Instrument flight rules would be required. See called the St. Louis air traffic controllers, saying he would see them in a couple of hours. He and Cernan discussed the different runways at Lambert Field in St. Louis. See then
climbed into the front seat of one T-38, with Bassett easing into the back seat. Stafford and Cernan
got into the other plane. They took off from Ellington at 7:35 a.m. See and Bassett led, with Stafford and Cernan flying wing position.

Reaching St. Louis just before 9 o'clock, See radioed the Lambert Field control tower and learned that the overcast had lifted to 240 meters since his earlier call, but the visibility had dropped to 2.4 kilometers. Light snow flurries now mixed with the rain and fog. As the aircraft descended through the overcast, the pilots found themselves too far down the runway to land. See elected to keep the field in sight and he circled to the left underneath the cloud cover. Stafford followed a missed
approach procedure and climbed straight ahead into the soup to 600 meters, intending to make another instrument approach. He landed safely on his next attempt.

Meanwhile, See had continued his left turn. The aircraft angled toward McDonnell Building 101, where technicians were working on the very spacecraft See and Bassett were scheduled to fly. Apparently recognizing that his sink rate was too high, See cut in his afterburners and attempted a sharp right turn; but it was too late. The aircraft struck the roof of the building and crashed into a
courtyard. Both pilots were killed.

NASA named a seven-man board to investigate the  accident. Led by Astronaut Alan B. Shepard, Jr., the board looked into all aspects of the tragedy - aircraft maintenance, pilot experience, medical histories, and weather conditions. Shepard's group listened to testimony from everyone who had anything to say, sifted the wreckage for clues, and drew conclusions. They found nothing wrong with the aircraft; it had functioned properly to the moment of impact. Within the past six months, See
and Bassett had renewed their instrument flying certificates. Before and during the flight, both men
had been in good physical and mental condition, as attested by medical examinations and by reported pre- and in-flight conversations. Furthermore, See was reputed to be an excellent test pilot. Careful, judicious, and technically competent, he should never have crashed at all. Weather appeared to have been the major contributing cause, and pilot error prompted by a desire not to lose sight of the field had carried them too low.

On Wednesday, 2 March 1966, Spacecraft No. 9, on its way to the flight dock for shipment to Cape Kennedy, passed an American flag flying at half-mast at the  McDonnell plant. The next day, Elliot See and Charles Bassett, attended by their fellow astronauts, were buried in Arlington National Cemetery across the Potomac from the Nation's capital.

NASA assigned the Gemini IX prime crew positions to Stafford and Cernan, marking the first time in the agency's manned space flight history that a backup crew had taken over a mission. On 21 March James Lovell and Edwin Aldrin were given the backup duties. There would be no delay in the launch schedule.

Gravesite photo courtesy of Ron Williams

Photo courtesy of Russell C. Jacobs, March 2006

Photo Courtesy of Russell C. Jacobs, August 2006