David M. Walker

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Emblem of Nasa's STS-53 mission

• Designed by the crewmembers, the STS-53 insignia shows the Space Shuttle Discovery rising to new achievements as it trails the symbol of the Astronaut Office against a backdrop of the American flag. The five stars and three stripes also serve to symbolize the mission designation (STS-53) and America's continuing commitment to world leadership in space. The pentagonal shape of the patch represents the Department of Defense (DOD) and its support of the Space Shuttle Program. The band delineating the flag from space includes the four colors of the military services of the crewmembers. The names of the flight crewmembers are located along the border of the patch. They are Commander David M. Walker, Pilot Robert D. Cabana, Mission Specialist (MS) Guion S. Bluford, MS James S. Voss, and MS Michael R. U. Clifford. Each crewmember contributed to the design of the insignia.

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S92-47653 (9 October 1992) --- Astronaut David M. Walker.

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The STS-30 patch depicts the joining of NASA's manned and unmanned space programs. The sun and inner planets of our solar system are shown with the curve connecting Earth and Venus symbolizing the shuttle orbit, the spacecraft trajectory toward Venus, and its subsequent orbit around our sister planet. A Spanish caravel similar to the ship on the official Magellan program logo commemorates the 16th century explorer's journey and his legacy of adventure and discovery. Seven stars on the patch honor the crew of Challenger. The five-star cluster in the shape of the constellation Cassiopeia represent the five STS-30 crewmembers - Astronauts David Walker, Ronald Grabe, Norman Thagard, Mary Cleave and Mark Lee - who collectively designed the patch.

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STS-69 Mission Insignia

Designed by the mission crew members, the patch for STS-69 symbolizes the multifaceted nature of the flight's mission. The primary payload, the Wake Shield Facility (WSF), is represented in the center by the astronaut emblem against a flat disk. The astronaut emblem also signifies the importance of human beings in space exploration, reflected by the planned space walk to practice for International Space Station (ISS) activities and to evaluate space suit design modifications. The two stylized Space Shuttles highlight the ascent and entry phases of the mission. Along with the two spiral plumes, the stylized Space Shuttles symbolize a NASA first, the deployment and recovery on the same mission of two spacecraft (both the Wake Shield Facility and the Spartan). The constellations Canis Major and Canis Minor represent the astronomy objectives of the Spartan and International Extreme Ultraviolet Hitchhiker (IEH) payload. The two constellations also symbolize the talents and dedication of the support personnel who make Space Shuttle missions possible.

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STS-51A Mission Insignia

• The Space Shuttle Discovery en route to Earth orbit for NASA's 51-A mission is reminiscent of a soaring Eagle. The red and white trailing stripes and the blue background, along with the presence of the Eagle, generate memories of America's 208 year-old history and traditions. The two satellites orbiting the Earth backgrounded amidst a celestial scene are a universal representation of the versatility of the Space Shuttle. White lettering against the blue border lists the surnames of the five-member crew.