Apollo Saturn 104 Spacecraft: (no serial number) Launch Vehicle: 3-stage Saturn C-1 SA-111 Scheduled Launch: 1 Feb 1965 Last Scheduled: 8 Aug 1960

⇑ Mission List ⇑ Designation: Apollo S1-3 L AS(U)-4 Description: 4th Apollo 3-stage Saturn C-1 unmanned CSM suborbital

The August 1960 long range plan for the manned spaceflight program called for a fourth three-stage Saturn C-1 suborbital flight of an Apollo Command Module in 1964: "reentry of a developmental capsule under the most severe heating conditions," thus simulating a return from the Moon. The launch date of January 1965 is interpolated. NASA announced the redesign of the Saturn C-1 as a two-stage launch vehicle on 1 June 1961. References: Disher, John H. 1960. "Long Range Plan: Manned Space Flight Program." 8 August. HSI-15822. Encyclopedia Astronautica. Wikipedia.