JSC2011-E-067682 (12 July 2011) --- Chief engineer Frank Svrecek pauses in the Shuttle Avionics Integration Laboratory (SAIL) at the Johnson Space Center in Houston July 12, 2011. The laboratory is a skeletal avionics version of the shuttle that uses actual orbiter hardware and flight software. The facility is referred to as Orbiter Vehicle 095. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool