• Roberts, B., "Development of a 'Ratchetless' Wrench forExtravehicular Activity," 1999 AIAA Region I Mid-Atlantic Student Conference, 16-17 April1999 (also published as SSL Document Number 99-005).[ paper (371 K PDF) | presentation ]
• Roberts, B. J. and D. L. Akin, "Weightless Testing of a'Ratchetless' Extravehicular ActivityWrench," SAE 1999-01-2036, 29th International Conference on Environmental Systems,12-15 July 1999 (also published as SSL Document Number 99-007).[ paper (566 K PDF) | presentation ]
• Roberts, B., "Evaluation of a Three-Dimensonal Roller Clutch Reversible Hand Socket Wrenchfor Extravehicular Activity," Master of Science Thesis, Department of Aerospace Engineering,University of Maryland, 9 August 1999 (also published as SSL Document Number 99-012).[ paper (3.5 MB PDF) | presentation ]

• "Wrench Inventor Studies Lunar Fire Suppression" (8 April 1999 article in Greenbelt News Review)
• A. James Clark School of Engineering page in the University of Maryland recruiting brochure

KC-135A Reduced-Gravity Flying Laboratory Tests

• Probst, J., Molina, P., Lieb, E., and B. Roberts, "Performance Testing of Ratchetless EVA HandTools," Poster Number AAS 98-496,American Astronomical SocietyNational Conference and 45th Annual Meeting: Space Station and the International Human Explorationand Development of Space, Houston, TX, 17-19 November 1999.[ paper | presentation ]
• Molina, P, and J. Probst, "Performance Testing of a RatchetlessExtravehicular Activity Hand Tool on the Reduced-Gravity Flying Laboratory," 1999 AIAA RegionV Mid-Atlantic Student Conference, 15-18 April 1999.[ paper (293 K PDF) | presentation ]

Neutral Buoyancy Laboratory Evaluations

• Roberts, B., "Three-Dimensional Roller Wrench and Human Performance Neutral Buoyancy Laboratory98.2 Test Results," SSL Document Number 99-001, March 1999.[ paper (878 K PDF) | presentation ]

Space Experiment Module