William R. Lucas

Following the Challenger tragedy, a longtime Marshall Center manager, known as "Apocalypse," wrote a letter to the center's inspector general detailing Lucas' management style. This letter eventually wound up in the hands of the Rogers Commission, which investigated the accident. Following strong criticism from the commission, Lucas retired in July 1986.

Despite his outward image as a stickler for doing things according to regulations, Lucas flagrantly violated them by ordering his managers not to raise any Marshall-related issue during the "Flight Readiness Review" process that could cause a delay in the launch. Lucas had issued a standing order that Marshall was not, under any circumstances, to cause a delay in the flight manifest. As a result, Marshall Center managers did not report evidence of severe O-ring erosion during the second space shuttle mission. Rather, they opted to keep the problem within their reporting channels with the SRBs' contractor, Thiokol. Even after the O-rings were redesignated as "Criticality 1"—meaning that their failure would result in the destruction of the Orbiter—no one at Marshall suggested that the shuttles be grounded until the flaw could be fixed. As a result, no one in NASA's senior management knew about the dimensions of the problem until a NASA auditor discovered a contract for a redesigned SRB in a 1985 budget report.

Despite Lucas' achievements (he received nearly every honor that NASA could bestow), few people outside the aerospace community heard of him prior to the Challenger tragedy. In the aftermath of the incident, it emerged that key personnel at Marshall, including Lucas, knew of a potentially catastrophic design flaw with the SRBs as early as 1977. The SRBs' "field joints" were supposed to close more tightly as a result of forces generated by ignition. Instead, the metal parts of the SRB casing bent away from each other, opening a gap through which hot gases could leak out and erode the O-ring seals. In the event of serious erosion, the booster could burst—which would destroy the shuttle.

After three years as Marshall's deputy director, Lucas was named the center's director in 1974. He took over only two years after the start of the Space Shuttle program. Under his direction, Marshall was responsible for managing the Shuttle's propulsion system, including the solid rocket boosters (SRBs) and the main engines on the Orbiter.

When von Braun's team was transferred to NASA as part of the Marshall Space Flight Center in 1960, Lucas transferred to the new organization. He served in Marshall's Propulsion and Vehicle Engineering Laboratory, eventually becoming its director. While there, he developed the propulsion system for the Saturn V rocket. He also developed the world's second space station, Skylab.

In 1952, Lucas moved to Huntsville, Alabama, to join Wernher von Braun's team at the Army Ballistic Missile Agency, based at the Redstone Arsenal. After serving as a staffer with the Guided Missile Development Group, he became the agency's materials officer in 1956. In this position, Lucas designed the thermal control system for the United States' first space satellite, Explorer 1. He also selected the materials used in the rocket that made Alan Shepard the first American in space, in 1961.

Lucas was born in Newbern, Tennessee. He graduated from Memphis State College (now the University of Memphis) in 1943 with a degree in chemistry. He earned a master's degree and a doctorate in metallurgy from Vanderbilt University in Nashville. He briefly interrupted his education to serve in the United States Navy during World War II.

William R. Lucas (born March 1, 1922) was the fourth Director of the NASA Marshall Space Flight Center. He served as director from June 15, 1974, to July 3, 1986.