Following on the footsteps of the latest two successful Russian EVAs (VKD-56 and -57), which installed the missing major elements on Nauka that were launched with Rassvet during STS-131, the ShK airlock and the RTOd radiator through the help of ERA, this spacewalk will aim to complete major work on the radiator, by filling it with coolant and deploying it to its working configuration in order to support full heat rejection capability in the RS. The coolant is now contained in Nauka's storage tanks as launched, and will be transferred through a fluid control panel on its side hull.As a secondary task, while the radiator fills up, they are expected to install a couple of gap-spanners on ERA's main booms to allow for easier EVA access along the arm.This EVA should complete the major external configuration changes in the RS, in general or until a further expansion (involving NEM?) takes place, except for future external experiment packages and their support structures.
Quote from: eeergo on 05/10/2023 04:08 pmFollowing on the footsteps of the latest two successful Russian EVAs (VKD-56 and -57), which installed the missing major elements on Nauka that were launched with Rassvet during STS-131, the ShK airlock and the RTOd radiator through the help of ERA, this spacewalk will aim to complete major work on the radiator, by filling it with coolant and deploying it to its working configuration in order to support full heat rejection capability in the RS. The coolant is now contained in Nauka's storage tanks as launched, and will be transferred through a fluid control panel on its side hull.As a secondary task, while the radiator fills up, they are expected to install a couple of gap-spanners on ERA's main booms to allow for easier EVA access along the arm.This EVA should complete the major external configuration changes in the RS, in general or until a further expansion (involving NEM?) takes place, except for future external experiment packages and their support structures.This is incorrect. They are using an expendable tank to fill the radiator which will be jettisoned afterwards. After filling it will be connected via valves to the Nauka cooling system loop.
Quote from: russianhalo117 on 05/10/2023 05:07 pmQuote from: eeergo on 05/10/2023 04:08 pmFollowing on the footsteps of the latest two successful Russian EVAs (VKD-56 and -57), which installed the missing major elements on Nauka that were launched with Rassvet during STS-131, the ShK airlock and the RTOd radiator through the help of ERA, this spacewalk will aim to complete major work on the radiator, by filling it with coolant and deploying it to its working configuration in order to support full heat rejection capability in the RS. The coolant is now contained in Nauka's storage tanks as launched, and will be transferred through a fluid control panel on its side hull.As a secondary task, while the radiator fills up, they are expected to install a couple of gap-spanners on ERA's main booms to allow for easier EVA access along the arm.This EVA should complete the major external configuration changes in the RS, in general or until a further expansion (involving NEM?) takes place, except for future external experiment packages and their support structures.This is incorrect. They are using an expendable tank to fill the radiator which will be jettisoned afterwards. After filling it will be connected via valves to the Nauka cooling system loop.Oh, alright! I was going by the video summary, but perhaps I misinterpreted something? Where's the container now? Isn't it hazardous to have it inside if that's where it is? Did it come up in a Progress?
✨ Today we go into outer space again!This time it will be difficult to oversleep the beginning of the exit Join the evening "space walk" on May 12 at 18:45 Moscow time! It's a great time to spend it in the company of Roscosmos cosmonauts and the hosts of our broadcast.Sergey Prokopyev and Dmitry Petelin will have to deploy a radiator on the Nauka module. The planned duration of the work is 6 hours 18 minutes
... Friday, May 1211:30 a.m. - NASA TV coverage begins for a spacewalk to deploy a radiator on Nauka and connect mechanical, electrical, and hydraulic lines.The spacewalks will be the fifth and sixth for Prokopyev, who will wear the Orlan spacesuit with the red stripes for all of the spacewalks and the third and fourth for Petelin, who will wear the spacesuit with the blue stripes....
Right on time. Spacewalkers now taking a break basking in the sun ("feels nice", they commented).Translating along the circular handrail at the nadir end of Nauka just over the Prichal node. PAO says they will be removing a handrail, but I didn't remember seeing that in the virtual preview video?
PAO keeps saying two gap spanners were installed on ERA, but as can be easily seen in this shot, the left boom doesn't have one. Unsure whether they still plan to install it, they forego it for some reason, or the original plan was always to install just one.EDIT: Yeah, looks like they'll install it now.
Quote from: eeergo on 05/12/2023 06:39 pmPAO keeps saying two gap spanners were installed on ERA, but as can be easily seen in this shot, the left boom doesn't have one. Unsure whether they still plan to install it, they forego it for some reason, or the original plan was always to install just one.EDIT: Yeah, looks like they'll install it now.The PAO is strictly following the provided script with mistakes. The timeline on the Russian broadcast calls for it before or after completing the radiator fill task which is long.. They are ahead of timeline so getaheads for that portion of the timeline were started.
Hatch closed, completing the VKD-58 spacewalk after 5 hours 14 minutes 57 seconds...
Cosmonauts Sergey Prokopyev and Dmitri Petelin completed the sixth spacewalk of the year at 5:01pm ET today after deploying and activating a radiator on the Nauka science module.
The spacewalk is complete!Sergey Prokopyev and Dmitry Petelin closed the exit hatch of the Poisk module at 00:01 Moscow time on May 13. The cosmonauts worked on the outer surface of the ISS for 5 hours and 14 minutes.During the release, the following tasks were completed:▪️ the radiator panels on the laboratory module "Nauka" were opened;▪️ radiator circuits are filled and combined with Nauka support systems;▪️ two gap spanners were installed on the ERA manipulator;▪️ two handrails were installed between the modules "Nauka" and "Prichal"....