
As tensions over Ukraine continue to simmer, United Launch Alliance has taken steps to speed up the delivery of Russian RD-180 engines that power its Atlas V launch vehicle. Meanwhile on Capitol Hill, draft legislation being circulated in the House would prohibit the company from using those engines to launch any of the Defense Department’s crucial payloads.
These moves come as SpaceX is filing an appeal to a U.S. Air Force decision to award ULA a contract for 36 rocket cores for its Atlas V and Delta IV boosters. The company, which is seeking to open certain launches to competitive bidding, has attacked the sole-source deal as unfair, and criticized continued U.S. reliance on Russian rocket engines for the launch of defense spacecraft.





