Orbital Antares - Manual (Page 82)

Antares
®
OSP-3
User’s Guide
Section 8.0
– Non-Standard Services
Release 1.1 July 2013 71
Figure 8.10-2. Use of Soft Ride Significantly Attenuates Peak LV Dynamic Environments
8.11. Debris Mitigation System
No Debris Mitigation System is offered for Antares. LEO orbits requiring debris mitigation have the per-
formance included in the BTS described in Section 8.9. Other debris mitigation systems will be designed
on a mission specific basis, if required.
8.12. Dual/Multi-Payload Adapter
Dual/Multi-Payload Adapter enhancements will be designed on a mission specific basis.
8.13. Enhanced Performance
Orbital offers two alternatives to enhance the performance of the Antares vehicle: a CASTOR 30XL SRM
second stage and the addition of a STAR 48BV SRM third stage.
8.13.1. Antares CASTOR 30XL Second Stage
For enhanced performance, Orbital offers the Antares 130 configuration (shown in Figure 8.13-1), which
consists of the common LOX/RP-1 first stage and a CASTOR 30XL SRM second stage. As shown in
Sections 3.3 and 3.4, the Antares 130 improves mass performance to LEO over the Antares 120 using
the higher impulse CASTOR 30XL. The Antares 130 utilizes qualified designs to the maximum extent
possible to minimize risk, schedule, and cost, and by implementing mass reductions that minimize design
changes to the vehicle interfaces. The Antares 130 also incorporates the additional 1.86 m (73.3 in.) high
fairing adapter to accommodate the additional length of the CASTOR 30XL SRM. This adapter allows
Orbital to offer the same payload fairing dynamic envelope for the Antares 130 as that defined for the An-
tares 120. The CASTOR 30XL SRM is loaded with 25,000 kg (55,500 lbm) of propellant and generates
approximately 530 kN (120,000 lbf) of thrust, with an Isp of 297 seconds and a burn time of 148 seconds.
The CASTOR 30XL SRM utilizes heritage components and designs common to the CASTOR 30B, Orion,
Orion and GEM series motors.