Orbital ATK [OA] delayed a hot-fire test of its re-engined Antares launch vehicle by two months to early May, according to a company spokeswoman.Orbital ATK spokeswoman Jennifer Bowman said Wednesday the new RD-181 engines are currently installed in the first-stage article. She said the company originally set a March test date based on an earlier set of test requirements, but later revised those test requirements with its NASA customer, who coordinates and approves such test requirements.Bowman said Orbital ATK is…
