D.M. Wylie first became interested in space exploration in the late 1940s when he was introduced to such new aircrafts as the flying wings (XB-35, YB-49), the Bell X-1, and the Rocket Sled test program at Muroc Air Base in the Mojave Desert. Military service gave him experience with guidance and control system technology and inertial navigation systems. His first job in the defense industry was with a small power supply company, building a back-up battery supply for JPL space program research. He worked in Los Angeles for a major guidance and control systems company building aircraft flight systems and test equipment. His involvement with the space shuttle program came during tenure with a major hybrid microelectronic manufacturer who, among other things, built electronic modules for the space shuttle. An engineer, wine maker, wood worker and sailor, the author - known to friends as Mike Wylie - lives with his wife, June, in Fort Collins, Colorado.