Is there public knowledge for the turnaround time for this Falcon 9 B5 pad?


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The answer to this question is the same as pretty much every question about private internal company secrets of SpaceX: we don't know. SpaceX is a private company, not even a publicly-traded private company. They are under no obligation to share this information with the public, and there is no reason for them to do so. In fact, there is good reason for them not to.

This is very likely a private and confidential trade secret.

What we can do, however, is look at the list of Falcon 9 launches from SLC-4E on Vandenberg Space Force Base and then we can see that the fastest turnaround was 22 days 20 hours 45 minutes between the launches of Starlink Block v1.5 Group 4-4 on 2021-12-18T12:41Z and Starlink Block v1.5 Group 4-11 on 2022-02-25T17:12Z.

However, all that is telling us is how fast SpaceX has turned around the pad in the past. It says nothing about how fast they could turn it around if they needed to. The thing is that there just aren't that many launches from SLC-4E that would force SpaceX to turn the pad around faster than they currently do.

There is an important difference between Vandenberg and the Space Coast, though: the Strongback at Vandenberg only retracts to about 20°. The Strongbacks at LC-39A and SLC-40 retract to about 45°. This means that the Strongback in Vandenberg sustains more damage than the ones in Florida. The best guess for why SpaceX did not retrofit the Strongback in Vandenberg the same way as they did the ones in Florida is that they simply don't need to: there are not enough launches from Vandenberg that SpaceX would need to turn around the pad any faster.

So, we don't know how fast SpaceX can turn around any of their pads, but we can guess that they probably can turn around the ones in Florida faster than the one at Vandenberg.

Y M D Time Mission Turnaround
2013 09 29 16:00Z CASSIOPE
2016 01 17 18:42Z Jason-3 840d 02h 42m
2017 01 14 17:54Z Iridium-1 362d 23h 12m
2017 06 25 20:25Z Iridium-2 162d 02h 31m
2017 08 24 18:50Z FORMOSAT-5 059d 22h 25m
2017 10 09 12:37Z Iridium-3 045d 17h 47m
2017 12 23 01:27Z Iridium-4 074d 12h 50m
2018 02 22 14:17Z Paz & Tintin A, B (Starlink) 061d 12h 50m
2018 03 30 14:13Z Iridium-5 035d 23h 56m
2018 05 22 19:47Z Iridium-6 & Grace-FO 053d 05h 34m
2018 07 25 11:39Z Iridium-7 063d 15h 52m
2018 10 08 02:21Z SAOCOM 1A 074d 14h 42m
2018 12 03 18:34Z Spaceflight SSO-A 056d 16h 13m
2019 01 11 15:31Z Iridium-8 038d 20h 57m
2019 06 12 14:17Z RADARSAT Constellation 151d 22h 46m
2020 11 21 17:17Z Sentinel-6 Michael Freilich 528d 03h 00m
2021 09 14 03:55Z Starlink (Group 2-1) 296d 10h 38m
2021 11 24 01:21Z DART 070d 21h 26m
2021 12 18 12:41Z Starlink (Group 4-4) 024d 11h 20m
2022 02 02 20:27Z NROL-87 046d 07h 46m
2022 02 25 17:12Z Starlink (Group 4-11) 022d 20h 45m

[Source: List of Falcon 9 and Falcon Heavy launches on Wikipedia and Vandenberg Space Launch Complex 4 on Wikipedia]


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