CHAPTER 17 SYSTEMS: EXTRAVEHICULAR ACTIVITIES—BUILDING A SPACE STATION 284 Lower torso assembly Liquid cooling and ventilation garment Boots LCVG liner (tricot) LCVG outer layer (nylon/spandex) LCVG water transport tubing TMG cover (ortho-fabric) TMG insulation layers (aluminized mylar) TMG liner (neoprene coated nylon ripstop) Pressure garment cover-restraint (dacron) Pressure garment bladder (urethane coated nylon) ARM Secondary oxygen pack Primary life support subsystem Battery Contaminant control cartridge Primary O 2 tanks Sublimator Caution and warning computer Lights Radio TV camera Lights Lights Antenna Muffler Fan/separator/ pump/motor assy. H 2 O tank Display and control module Secondary O 2 tanks O 2 regulators Gloves Hard upper torso Helmet Extravehicular visor assembly TV camera Communications carrier assembly Insuit drink bag Connection for service and cooling umbilical MMU mount Temperature control valve O 2 control actuator Extravehicular Mobility Unit Figure 3. The major components that make up the EMU.