The NASA Docking System, as currently conceived, will require changes to the station’s two U.S. segment APAS-equipped docking ports. The ISS docking adapter (IDA), which is in production, will modify the APAS inner ring soft capture mechanism to accommodate commercial crew vehicles with Simac, Suffredini says.
The IDAs should be ready for station delivery in 2015, according to his estimates. The Simac docking hardware should be ready a year later, and NASA will likely provide the early production units to the winning commercial crew transportation initiative participants.
As far as Ilids, the development effort is being archived so that it could be available to the commercial sector, perhaps through a Space Act Agreement (SAA) with NASA.
“If someone would like it for whatever reason, I’m sure we could work out a SAA,” Suffredini says. “We have no conversations like that going on right now.”