CHAPTER Ii, SECTION 3 (Neg. No. W-899-1) Figure No. 2-68. Rocket Launchers, Stations J-612 and J-910. STATION: J-613 Station J-613 was located in an area, 21x11% feet, adjacent to the equipment room. The insulated wall of the equipment room anda plywood-covered stud wall opposite enclosed the area, and each wall contained 6-foot double doors. A ceiling-hung unit provided the air- SITE: Johnston Island were also included. Station J-612 shared a 10-inch concrete slab 28x125 feet with Station J-910. The slab was utilized as a launching pad and contained numerous projecting anchor bolts. USER: DOD/ESL PURPOSE: Recording Station conditioning. New lights and power receptacles PARTICIPATION: J-40, J-41 DESIGN PSI: None CONSTRUCTION: 5-1-58/7-7-58 The concrete basement of Building T-249 with the superstructure previously removed was used for this station. The basement was utilized also for Stations J-3230.01, J-3241.01, and J-3440.01. It was 21x72x10-feet-deep with the concrete roof about flush with grade. Concrete stairs located on one end and on aneside pro- vided entry. The building was partitioned into four new rooms. The end wall stairway led to the equipment room, 21x24 feet. This room division was provided by an insulated wood stud partition across the 21-foot width. A 16ton-capacity compressor located in this room. and a receiver were (Neg. No. W-960-1) Figure No. 2-69. Dehumidifiers and Air Conditioners — Station J-613. Page 131