Tim Krantz has since 1987 worked as a research engineer at the NASA Glenn Research Center — first as an employee of the U.S. Army and presently as an employee of NASA. He has researched many topics to improve power transmission components and systems, with an emphasis on helicopter gearbox technologies. He has also helped investigate several issues for the NASA Engineering Safety Center — including the space shuttle rudder speed brake actuator, space shuttle body flap actuator and the International Space Station solar alpha rotary joint mechanisms. Krantz is the current vice- chair of the ASME Power Transmission and Gearing Committee