Apollo Saturn 101 Spacecraft: (no serial number) Launch Vehicle: 3-stage Saturn C-1 Blk 2 SA-6 Scheduled Launch: 1 Aug 1964 Last Scheduled: 9 Feb 1961

⇑ Mission List ⇑ Designation: Apollo S1-3 L AS(U)-1 Description: 1st Apollo 3-stage Saturn C-1 boilerplate CSM suborbital, full-scale reentry test

Handwritten in the margins of a letter dated 9 February 1961 regarding the SA-6 launch vehicle: "S-I, S-IV, 3rd stage dummy, full-scale reentry test." The launch date of August 1964 is interpolated from multiple documents. NASA announced the redesign of the Saturn C-1 as a two-stage launch vehicle on 1 June 1961. References: Unger, J. 1961. "Memorandum to Director, MLVP." 9 February. HSI-16130. Encyclopedia Astronautica. Wikipedia.