The Vulcan had two primary versions: B.1 initial production model, featuring high altitude performance and speed and Improved B.2 with larger Wings for better lift and stability, a strengthened ...

Despite not having launched anything in more than five months, United Launch Alliance still expects to fly around 12 missions this year. But it’s still waiting on the Space Force to certify ...

The first of ULA's Phase 2 missions launched last year on an Atlas V rocket, and 25 more are slated to fly on Vulcan. Pentagon officials haven't been pleased with ULA's progress on the Vulcan rocket.