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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




Launch sites:

CCK = NASA John F. Kennedy Space Center, Cape Canaveral, Florida, USA USA
Va  = Vandenberg AFB, California, USA USA

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