| GENERAL CHARACTERISTICS ITEM DESCRIPTION | RADAR COOLING SYSTEM,SERVICE MEDIA AIR,TEMPERATURE -65DEG TO 160 DEG F,OPERATING PRESSURE 5.5 PSIG,CABIN PRESSURE SCHEDULE NO PRESSURATION BELOW 8000 FT,8000 FT CABIN ALTITUDE TO BE MAINTAINED FROM 8000 FT TO 23000 FT AIRPLANE ALTITUDE,5.0 PSIG TO BE MAINTAINED FROM 23000 FT TO 60000 FT AIRPLANE ALTITUDE |