On Sunday March 26, 2017, the Space Station’s robotic arm relocated the PMA-3 to the Harmony module where it will serve as a second docking target for commercial crew vehicles next year.
The umbilicals from the PMA-3 were disconnected during the last US EVA-40 (see post) preparing the way for today’s relocation.
As usual, I am using my ISS model in 1:100 to demonstrate this event.
First step was to maneuver the Station’s robotic arm (SSRMS) to a hover position over the zenith port of the Harmony module to document the opening of the Common Berthing Mechanism (CBM) petals in preparation for the PMA-3 arrival.
A command was sent to move the Canadarm2 closer to PMA-3 for grapple.
The PMA-3 model
The PMA-3 paper model is included in the ISS Combokit #2 which is available for free download at my old website ISS page.
At the time of this post, the current PMA-3 has a cover which is planned to be removed on the next US EVA-41 to be performed next week. For those who have purchased the ISS 1:100 papermodel, DO NOT GLUE the cover to the PMA-3. It has been designed to snap in place only.
In addition, the PMA-3 model is not to be glued to Harmony at this time, until the IDA3 adapter is added this year.
As seen on my photos, the ISS 1:100 papermodel is very accurate in depicting all the elements of the real ISS, because a lot of research was put into the ISS model. My posts are to educate and show the public what takes place aboard the real International Space Station.
I hope you had fun and learned a little bit about this presentation. I thank my kids for assisting me holding the black background and taking some photos for this post.
I welcome all your comments.
Next: US EVA-41