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Most recent news is that the 180 cu/meter Sundancer module has been canceled - seems their customers want the larger 330 cu/meter BA-330 module instead. Also, the 2100 cu/meter BA-2100 remains a concept until a super-heavy booster that can loft its 65 metric ton mass is available. That is in the way to being worked out via NASA's Space Launch System booster which should loft from 70 - 130 metric tons depending on configuration. Still in the planning stage as to who will build what parts.
As for the posts title, some of the guys on the spaceflight sites have been data mining to come up with the dimensions and create rough outlines of BA-330, BA-2100 and the Service Node Module (docking hub/propulsion bus). There are to be two sizes of Service Node Module and this is the smaller. The long rear portion will have 4 hypergolic (or potentially - NOFBx) engines with elongated fuel & oxidizer tanks inside of a tubular frame with their own solar power. .
Some of these are too large to embed so find them attached. Metric versions.
As for the posts title, some of the guys on the spaceflight sites have been data mining to come up with the dimensions and create rough outlines of BA-330, BA-2100 and the Service Node Module (docking hub/propulsion bus). There are to be two sizes of Service Node Module and this is the smaller. The long rear portion will have 4 hypergolic (or potentially - NOFBx) engines with elongated fuel & oxidizer tanks inside of a tubular frame with their own solar power. .
Some of these are too large to embed so find them attached. Metric versions.