Air Force Says ULA Will Need 18-22 RD-180s To Compete with SpaceX

The U.S. Air Force contends United Launch Alliance needs as many as 22 RD-180 rocket engines to compete against SpaceX for dozens of national security launches that start going out for bid later this year, according to a U.S. senator. The post Air Force Says ULA Will Need 18-22 RD-180s To Compete with SpaceX appeared first on SpaceNews.com.