Prep-work for International Docking Adapters Complete!

Spacewalkers Terry Virts and Butch Wilmore completed the third of three spacewalks to prepare the ISS for the arrival of the International Docking Adapters, to be delivered on the next Dragon cargo vessel.  The highlight of today’s activity was installation of the Common Communications for Visiting Vehicles (C2V2) system, which will support the two-way voice communications that visiting crew vehicles will require, and installation of retroreflectors used to guide docking vehicles.  The system will also be available for cargo vehicles to transition to, rather that the hodgepodge of systems currently used, but there’s no timeline for when that might happen.


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