(Click here if drawing doesn't appear above.) 1 Docket in wall for door clearance. 2 Antenna coupler attach No. 3. 3 Removable handrail. 4 Launch area antenna. 5 Mechanical, electrical equipment vault (MEEV). 6 Launch preparation equipment vault (LPEV). 7 Door opening. 8 Top of upper platform. 9 Antenna coupler attach No. 2. A Umbilical duct. B Top of future upper platform. C Top of lower platform. D Top of future lower platform. E Exhaust duct. F Launch chamber. G Water stop construction joints. H Concrete sub slab. I Ladder rungs (vertical).