 Unlike Lear, LSI does not produce executive jets that bear the “Lear” name.During the late 1950s, and throughout the 1960s and 1970s, America (and Southern California in particular) was experiencing an unprecedented boom in aviation technology and aerospace research and development, based on a "space race" inaugurated by the launch of Sputnik, a simple but startling first in a long history of scientific and technological competition between the United States and the Soviet Union.In June 1955, seven months after the consolidation of the precursor Siegler Corporation business entities and relocation of corporate headquarters to a downtown Los Angeles address.