ULA testified to congress that they have a 2 year supply of RD-180 engines (not sure of the exact number). The RD-180 argument is definitely weaker. Cost & reu

ULA testified to congress that they have a 2 year supply of RD-180 engines (not sure of the exact number). The RD-180 argument is definitely weaker. Cost & reusability are much stronger arguments for canceling/recompeting the ULA block buys. That said, I can't wait until we have genuine competition in the space launch sector, especially with lightning fast turn times. It would be a genuine revolution in space access—even if money were no object, there's no one in history that has had the technology to support continual launches to orbit.