S-IVB Advanced Stati - Douglas design for a Skylab-follow-on using the S-IVB stage as the structure. This would have been launched in the late 1970's. 41,729 bytes. 332 x 338 pixels.

Follow-on to Skylab proosed by Douglas. The station would still use the S-IVB stage as the basis, but would be much more extensively outfitted for larger crews.

• 36 - Gatland, Kenneth and Bono, Philip, Frontiers of Space, Macmillan, New York, 1969.