Orbital Antares - Manual (Page 84)

Antares
®
OSP-3
User’s Guide
Section 8.0
– Non-Standard Services
Release 1.1 July 2013 73
8.14. Lengthened Payload Envelope
As an enhancement, Orbital provides additional
fairing adapters for the Antares 120 series vehicles
consisting of 2774 mm (97.4 in.) tall composite cy-
linders inserted at the base of the standard fairing,
effectively increasing the length of the payload stat-
ic envelope by an equivalent amount (Figure 8.14-
1). While this enhancement offers an increase in
available payload volume, a performance impact of
approximately 50 kg (110 lb) is realized when this
adapter is used. This alternate fairing configuration
can only be used in conjunction with the Antares
standard 120 configuration. As discussed in Sec-
tion 8.13.1, the additional adapter is already used
on the Antares 130 configuration to accommodate
the longer CASTOR 30XL SRM.
8.15. Hydrazine Servicing
Under this enhancement, Orbital provides hydra-
zine fueling service for the satellite though a direct
contract to United Paradyne Co. (UPC). UPC has
developed and manufactured their own hydrazine
servicing GSE to offer a commercial fueling service.
A typical propellant loading schematic is shown in
Figure 8.15-1.
The scope of this enhancement includes the pro-
curement of hydrazine fuel, the preparation of documentation for fueling operations, the support of safety
and integrated operations meetings, the provision of equipment needed for Self Contained Atmospheric
Protective Ensemble (SCAPE) operation, including personal protection equipment and fuel transfer cart,
and all personnel required to conduct fueling operations. Emergency defueling operations can also be
supported if desired.
8.16. Nitrogen Tetroxide (NTO) Servicing
Under this enhancement, Orbital provides NTO loading service for the satellite though a contract to UPC.
The scope of this enhancement includes the preparation of documentation for loading operations at
VAFB, the support of meetings, the provision of equipment needed for SCAPE operation, including per-
sonal protection equipment and NTO transfer cart, and all personnel required to conduct fueling opera-
tions. Emergency unloading operations are included as a separate contract option. The cost of the NTO
fuel is bid separately as the service is needed since the required quantity, and therefore the cost, of the
NTO is specific to the payload. This enhancement assumes a launch from the baseline launch site (WFF
for Antares). There may be cost adjustments required for alternate launch sites. An optional NTO loading
pathfinder to verify the process and interfaces between the loading equipment and personnel support
equipment to the facility can be provided as a mission-specific service.
Figure 8.14-1. Antares 120 Enhanced Fairing
Dynamic Envelope