Here's a link to a post I made with a graph of "EELV" launch cadence over the first five years since maiden launch, launch aligned, for HII, Atlas V, Delta IV, Ariane V, and Falcon 9: https://forum.nasaspaceflight.com/index.php?topic=46338.msg2450278#msg2450278. I'm reattaching the graph for reference here, as it seems relevant.
ULA doesn't really have a great need to quickly ramp production on Vulcan for the first couple years. They'll need a few a year at first, and then they'll need it at full rate when the Atlas V's for Amazon run out.
Quote from: abaddon on 01/20/2023 03:53 pmHere's a link to a post I made with a graph of "EELV" launch cadence over the first five years since maiden launch, launch aligned, for HII, Atlas V, Delta IV, Ariane V, and Falcon 9: https://forum.nasaspaceflight.com/index.php?topic=46338.msg2450278#msg2450278. I'm reattaching the graph for reference here, as it seems relevant.According to this terrific graph, in their first years, Atlas V, Delta IV, HII, Ariane 5, and Falcon 9 had a TOTAL of SIX additional launches.So the proposition is that ULA will launch 1.5X as many Vulcans in the partial year after its debut as the combined track record of all five predecessors.“Aspirational” is generous.The fastest “first ten” was Falcon 9 in just under FOUR years.We will see if ULA, with their “MethaLOX Atlas VI” Vulcan can match that.
So, it all comes down to whatever the best production rate BO can manage for their BE-4s. And in the longer term, for both of the affected LVs.
It seems that Vulcan is built in Huntsville and then moved to Florida on Rocketship. On the initial shipment, the ship carried one Vulcan. Is this the max? Rocketship takes 8 days on the journey, one way, so probably 18 days round trip including turnaround. That would mean 20 trips per year. I think the ship is also used for Atlas V and will be used for the last Delta IV Heavies.If Rocketship can carry an average of two or more Vulcans, this will not constrain the launch rate. Is there an alternate means of transport?How to ULA rockets get to Vandenberg?
ULA rockets are transported to Vandenberg SFB by boat from Cape Canaveral by crossing the Panama Canal after sailing across the Gulf of Mexico.
We have seen that methane GSE can require some testing and debugging for a large rocket, notably Starship. It's probably easier than Hydrogen a lot easier than hydrogen, but it's still going to be new. If Vulcan needs to roll back a few times we should not be surprised: it's normal and presumably it's in the schedule.
Quote from: DanClemmensen on 01/20/2023 07:15 pmIt seems that Vulcan is built in Huntsville and then moved to Florida on Rocketship. On the initial shipment, the ship carried one Vulcan. Is this the max? Rocketship takes 8 days on the journey, one way, so probably 18 days round trip including turnaround. That would mean 20 trips per year. I think the ship is also used for Atlas V and will be used for the last Delta IV Heavies.If Rocketship can carry an average of two or more Vulcans, this will not constrain the launch rate. Is there an alternate means of transport?How to ULA rockets get to Vandenberg?ULA rockets are transported to Vandenberg SFB by boat from Cape Canaveral by crossing the Panama Canal after sailing across the Gulf of Mexico.
Quote from: Vahe231991 on 01/20/2023 08:08 pmQuote from: DanClemmensen on 01/20/2023 07:15 pmIt seems that Vulcan is built in Huntsville and then moved to Florida on Rocketship. On the initial shipment, the ship carried one Vulcan. Is this the max? Rocketship takes 8 days on the journey, one way, so probably 18 days round trip including turnaround. That would mean 20 trips per year. I think the ship is also used for Atlas V and will be used for the last Delta IV Heavies.If Rocketship can carry an average of two or more Vulcans, this will not constrain the launch rate. Is there an alternate means of transport?How to ULA rockets get to Vandenberg?ULA rockets are transported to Vandenberg SFB by boat from Cape Canaveral by crossing the Panama Canal after sailing across the Gulf of Mexico.Yep, that's what Wikipedia says: https://en.wikipedia.org/wiki/RS_RocketShipThat article says it takes 3 weeks one way. There are no further Atlas V or Delta IV heavy flights from Vandenberg except possibly Kuiper on Atlas V. I have no idea if Kuiper will need Vandenberg launches.
Quote from: DanClemmensen on 01/20/2023 09:23 pmQuote from: Vahe231991 on 01/20/2023 08:08 pmQuote from: DanClemmensen on 01/20/2023 07:15 pmIt seems that Vulcan is built in Huntsville and then moved to Florida on Rocketship. On the initial shipment, the ship carried one Vulcan. Is this the max? Rocketship takes 8 days on the journey, one way, so probably 18 days round trip including turnaround. That would mean 20 trips per year. I think the ship is also used for Atlas V and will be used for the last Delta IV Heavies.If Rocketship can carry an average of two or more Vulcans, this will not constrain the launch rate. Is there an alternate means of transport?How to ULA rockets get to Vandenberg?ULA rockets are transported to Vandenberg SFB by boat from Cape Canaveral by crossing the Panama Canal after sailing across the Gulf of Mexico.Yep, that's what Wikipedia says: https://en.wikipedia.org/wiki/RS_RocketShipThat article says it takes 3 weeks one way. There are no further Atlas V or Delta IV heavy flights from Vandenberg except possibly Kuiper on Atlas V. I have no idea if Kuiper will need Vandenberg launches.Cape Canaveral will be launch site for Atlas V rockets slated to launch Kuiper satellites. The KuiperSat-1 and KuiperSat-2 will be lofted to space as part of the maiden launch of the Vulcan rocket, and Amazon last year won a contract to launch Kuiper satellites aboard 38 Vulcan rockets.
Quote from: DanClemmensen on 01/19/2023 03:58 pmQuote from: gongora on 01/19/2023 03:36 pmSame pad, but different mobile launch platforms for the different rockets. They've already done some tanking tests with the Vulcan pathfinder, so not starting from scratch there.If there is room to stack a Vulcan and an Atlas at the same time, one on each ML, then this might reduce pad "conversion", not increase it.ULA has rebuilt the SPOC (Spaceflight Processing Operations Center) building into a second vehicle integration facility for Vulcan at their launch site in Florida to essentially double their possible flight rate. Edit to add: Vulcan: Launch platform rolls to pad for first timeJanuary 29, 2021https://blog.ulalaunch.com/blog/vulcan-centaur-launch-platform-rolls-to-pad-for-first-time
Quote from: gongora on 01/19/2023 03:36 pmSame pad, but different mobile launch platforms for the different rockets. They've already done some tanking tests with the Vulcan pathfinder, so not starting from scratch there.If there is room to stack a Vulcan and an Atlas at the same time, one on each ML, then this might reduce pad "conversion", not increase it.
Same pad, but different mobile launch platforms for the different rockets. They've already done some tanking tests with the Vulcan pathfinder, so not starting from scratch there.
I think we're going off topic with the discussion of the Kuiper satellite launches and Vulcan contracts. It should be in whichever thread is dedicated to Vulcan launching Kuiper.These additions on Next Spaceflight are obviously subject to change, and who knows how many Vulcans will be launched this year?
The NextSpaceFlight website now lists 11 planned Vulcan launches for 2023 instead of 10. Therefore, the posting of this thread was quite premature, especially the title, because NextSpaceFlight routinely makes changes to expected launch windows for upcoming launches for which no firm date is set.
First of all, the Demo launch of DreamChaser is missing, which is supposed to be the second launch of the Vulcan rocket.
And the cost for the first 83 launches is $5B, which equates to about $50M per launch.