Rockwell International | Downey, CA | 1985 | edition | loose-leaf | Illus w/diagrams & photos | Fine | 8.5x11 inches, punched for three ring binder, 69pp | Typical excellent Rockwell guide to STS-51-E Challenger flight which was to be launched in 1985 with the TDRS/IUS and Senator Jake Garn, but was cancelled due to IUS failure. Essentially a press kit, it includes basic information, landing sites, flight test and mission objectives, landing ops at KSC and Edwards, prelaunch countdown, mission timeline and glossary. A nice package. From a former space reporter's collection. Scarce given that the mission was cancelled.