New article reproducing a September 1946 progress report on the Martin Orbit Project is now up on
RetroMechanix.com:
This huge rocket project appears to be a refinement of Martin's earlier High Altitude Test Vehicle (HATV) proposal, an ambitious single-stage-to-orbit satellite launch vehicle designed for the U.S. Navy immediately after WW II. The accompanying gallery features 24 images, including several high resolution drawings of the vehicle.
-Jared