https://www.reuters.com/article/us-space-exploration-blueorigin/bezos-blue-origin-to-deliver-first-flight-ready-rocket-engines-next-summer-ula-ceo-idUSKBN28S0I8

The chief executive of United Launch Alliance (ULA), a joint rocket venture between Boeing Co and Lockheed Martin Corp, said it expects to receive two new rocket engines from billionaire Jeff Bezos' Blue Origin by next summer.