S-300 ANECHOIC CHAMBER TURNTABLE PIT AND ACCESS TUNNEL PLANS AND SECTIONS.pdf

The document is a detailed technical drawing (S-300) for an Anechoic Chamber Turntable Pit and Access Tunnel, specifically for the Air Force Plant 42 Annex facility. The drawing provides comprehensive architectural and engineering specifications for a large 80-foot diameter turntable structure, including precise measurements, reinforcement details, embedded plate plans, and section views. Key technical notes specify reinforcing placement, bar splicing requirements, and dimensional tolerances for the turntable pit and surrounding infrastructure. The drawing is marked as property of the United States Government and was created by Rockwell International Corporation, with a date stamp of 1/28/88, and references a drawing from the Army Corps of Engineers.