Oct 042011
1975 Boeing concept drawings, copied pretty much directly from a Rockwell study from 1971, for a space station to orbit the moon and serve as a way-station for surface exploration. Max crew of 8 in an 111 km circular lunar-polar orbit. The surface operations would be sorties of four men lasting up to one month. The lunar landers (derived from orbital tugs) would be single-stage, reusable and capable of hauling a fair amount of cargo.
The North American Rockwell concept diagram from 1971 is below. The configuration of the station is identical, down to some of the notation on the drawing, but more details are included. Note the interior views of the modules.
