The lunar excursion module propulsion systems development facility (fig. 53) will provide resources for developing the LEM propulsion systems and will include three test stands having attitude capability. The propellant, oxidizer, water storage, and distribution facilities provided for the service module will also be used for the LEM.

Sacramento Test Facility.-The Sacramento Test Facility is located just east of Sacramento, Calif. (fig. 54). A field station, it is responsible for both developmental and acceptance testing of the S-IV stage for the SATURN I and the S-IVB stage for the SATURN IB and SATURN V. Testing of the S-IV-5 and S-IV-6 was conducted on the ALPHA IIB, a converted THOR dual-position test stand (fig. 55). A two-stand complex for the S-IVB program is being constructed (fig. 56). The attitude control motor complex is also under construction. An additional static acceptance test stand and a conversion of the battleship test stand to acceptance testing are presently planned.

Mississippi test operations. Mississippi test operations (MTO), a site solely devoted to acceptance testing, is located on the East Pearl River in southwestern Mississippi, approximately 40 miles from New Orleans (fig. 57). The main test site, comprised of 13,500 acres, is surrounded by a 128,156-acre buffer zone which will be uninhabited but used for farming and lumbering operations (fig. 58). MTO will be responsible for the acceptance testing of the first stage (S-IC) and second stage (S-II) of the SATURN V vehicle.

The SATURN V test area (fig. 59) will include two single-position S-II test stands (figs. 60 and 61) and a dual position S-IC test stand (fig. 62). Stages will be transported by barge to and from the stands for testing. Supporting resources for MTO are in the industrial and the engineering complexes, located in the western sector of the fee

area.

Construction has started on the ADVANCED SATURN complex, the canal system, the lock, the laboratory and engineering building, the warehouse, the site maintenance building, the emergency services building, electrical distribution systems, and other supporting facilities. Future plans include such supporting utilities and resources as security control buildings, an automotive maintenance building, and completion of the warehouse building, roads and technical systems. Merritt Island.-The APOLLO mission test resources, where APOLLO spacecraft undergo final testing prior to launch, are located in the Merritt Island area at the Kennedy Space Center (fig. 63). Because this was an undeveloped area consisting of timberland and groves, all construction, except for modifications to Hangar A.F. at

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