Apollo Saturn 106 Spacecraft: (no serial number) Launch Vehicle: Saturn C-1 Blk 2 SA-10 Scheduled Launch: 1 Aug 1964 Last Scheduled: 25 May 1962

⇑ Mission List ⇑ Designation: Apollo S1 L A(U)-4 Description: 4th Apollo Saturn C-1 unmanned CSM orbital

In a 25 May 1962 planning document, the fourth Apollo Saturn C-1 unmanned CSM orbital was scheduled for launch in August 1964. The mission did not appear in later documents. References: Holmes, D. Brainerd. 1962. "The Manned Lunar Landing Program." 25 May. HSI-17512. Encyclopedia Astronautica. Wikipedia.