3-D Sprags and Rollers
EVA Roller Wrench

We participated in the 1998 NASA Reduced Gravity Student Flight Opportunities program.

A few publications have resulted from the tests:

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

There was media coverage of the 1998 Reduced Gravity Student Flight Opportunities program:

• 11 March 1998 NASA Press Release: "Teams of College Students Prepare Experiments for NASA's Reduced Gravity Aircraft"