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OmegA (Orbital-ATK NGL)
OmegA-521 [OrbitalATK]
The Northrop Grumman Innovation Systems (NGIS) (formerly Orbital-ATK) OmegA, formerly known as NGL (Next Generation Launcher), is a planned launch vehicle to provide EELV-class performance as an alternative to Falcon-9 and Vulcan.
The vehicle is to consist of two Shuttle SRB derived solid rocket motor stages: a 2 segment Castor-600 and a 1 segment Castor-300. As a third stage, a cryogenic LOX/LH fueled stage powered by two RL-10C-5-3 is planned. Depending on the needed performance, the core vehicle can be augmented by up to six GEM-63XL solid rocket boosters.
ATK envisages a 2021 maiden launch, if the full development is approved. The designated launch sites are Cape Canaveral LC-39B and Vandenberg SLC-6.
OmegA was cancelled in August 2020 after it was not awarded a contract in the NSSL-2 program.
| Launch Vehicle | Strap-On | Stage 1 | Stage 2 | Stage 3 |
|---|---|---|---|---|
| OmegA-500 (Orbital-ATK NGL-500) | 0 - 6 × GEM-63XL/T | Castor-600 | Castor-300 | ? / 2 × RL10C-5-3 |
| OmegA-500XL | 0 - 6 × GEM-63XL/T | Castor-1200 | Castor-300 | ? / 2 × RL10C-5-3 |
| Performance (kg) | LEO | LPEO | SSO | GTO | GEO | MolO | IP |
|---|---|---|---|---|---|---|---|
| OmegA-500 | 4900-10100 | 5250-7800 |
Nr: TNr: Vehicle: Serial: Fair: LS: Date: Payload
none Planned: none Launch sites: CCK = NASA John F. Kennedy Space Center, Cape Canaveral, Florida, USAVa = Vandenberg Air Force Base, California, USA
