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Link here. Overall the rocket seems to be on track for its planned April 2021 launch, except it appears ULA has decided to do that launch without two new components of the rocket that previously were planned, delaying their implementation.
First, it appears that Blue Origin’s BE-4 engine might not power the rocket’s first stage in its initial flights. It seems that both companies want that engine to first fly on Blue Origin’s New Glenn rocket, whose first launch is not set until 2021 as well.
This delay in the engine’s use has me wondering whether ULA has gotten cold feet about Blue Origin and its engine. It certainly seems to me that progress at Blue Origin has slowed considerably in the past year. For example, they promised manned flights of New Shepard that did not happen, and testing on the BE-4 seems to have gone underground.
In fact, the combination of increased hype and lack of progress has made Blue Origin and Jeff Bezos remind me increasingly of Virgin Galactic and Richard Branson, that team of endless unmet promises.
Second, it appears ULA has given the recovery and reuse of Vulcan’s first stage engines a very low priority. The technique they had chosen was to have the engines separate from the tanks and return to Earth by parafoil, protected by an inflatable heat shield. However,
A technology demonstration payload for the inflatable heat shield, which could also be used to deliver payloads to the surface of Mars, is slated to fly as a rideshare payload with NOAA’s JPSS-2 satellite aboard an Atlas V launch no earlier than 2022. [emphasis mine]
In other words, that reusable technology probably won’t be operational until well into the 2020s. Vulcan will likely be completely expendable for at least the first five years of its use.
ULA apparently has decided to take the safe technology route. Financially secure because of a $1 billion Air Force development contract to pay for Vulcan, combined with the military’s obvious desire to favor them in the awarding of future launch contracts, the company doesn’t have any incentive to innovate in any way to lower costs.