Sea Launch User's Guide

Encapsulation
Boeing personnel install the payload fairing on the encapsulated payload
transportation mechanical equipment (EPTME). The EPTME (fig. 8-9)
supports the payload fairing in a horizontal position.
Alignments are meticulously inspected and the EPTME slides the
payload fairing over the spacecraft and mates with the ISPS.
Figure 8-9. EPTME With Encapsulated DemoSat Spacecraft
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Payload unit
The encapsulated spacecraft, adapter, ISPS, and payload fairing are
called a payload unit.
Communication checks are conducted on the spacecraft and conditioned
airflow is initiated into the payload fairing cavity.
Scaffolding
Scaffolding is available to provide access while in the horizontal
position. Figure 8-10 illustrates this access and figure 8-11 shows an
example in use. Part of this same scaffolding is also available on board
the ACS to provide access for maintenance and to support mating to the
Block DM.
8-8 D688-10009-1 REV B