APOLLO APPLICATIONS PROGRAM (AAP) MODEL.
Model made by the NASA-Marshall Space Flight Center's (MSFC) Graphic Engineering and Model Studies Branch, plastic and metal, partly transparent, 17 inches tall. The "stack" features the top of a S-IVB rocket stage, an Instrument Unit (IU) with interior details, a clear Spacecraft-LM Adapter (SLA) section, and a transparent Command/Service Module (CSM). The long fuel and oxidizer tanks, fuel cells, and other pressure tanks are visible inside the Service Module (SM). One SM section has removable red tinted plastic. The Command Module (CM) shows the activities of two crewmen and the locations of various equipment including the main control panel. A Lunar Excursion Module (LEM) with deployable landing legs, an equipment transfer "Rack," and a Mission Module-LEM Truck Payload are included as separate vehicles. Each can be placed individually inside the SLA area, or in a "docked" position with the CSM via "push-snap" connectors. The CSM and SLA are detachable from each other and from the S-IVB-IU. The latter is fixed onto a wooden base, with a plaque reading: "Apollo Applications Program, Scale: 1/4 inch = 1 foot." Each major vehicle component is identified with red decals. The whole fitting into an original 19 by 11 by 8 inch wood carrying case which is painted blue and has decals reading "A. A. P. No. 34" and "FRAGILE."
During the time this model was made, in the mid-1960s, the Apollo Applications Program (AAP) had envisioned not only Earth orbital survey missions but lunar orbit mapping and extended lunar landing flights. The modules that fit into the SLA area of this model represent some of the lunar exploration aspects of AAP. Through the later 1960s, AAP was scaled back to Earth orbit operations and utilized the tanks inside the S-IVB. They would not contain fuel but could be turned into a habitable module with scientific equipment stored inside prior to launch. This program was known as Skylab and had three manned missions in 1973-74.
Included is a photograph from 1968 of Dr. Faget in his MSC office area discussing aspects of a lunar mission with visiting Rear Admiral Sun Tsu-Tsung of the Taiwan Navy. This AAP model can be seen at the side of the Admiral.