Questions tagged [pma]

Questions about PMA (Pressurized Mating Adapters), three of which are deployed on the ISS.

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Why is the Pressurized Mating Adapter slanted?

There are three of these on the ISS. One connects the Russian modules to the rest. One was used for docking the shuttles. One... kinda just sits there, with modules that were to be berthed canceled. (...
15
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1answer
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How many docking/berthing operations can a CBM port tolerate?

Generally the CBM ports were meant to connect new space station nodes together. The nadir port on Harmony (Node 2) has been used for more berthings than any other that I am aware of. As of Jan 2014,...