found: NASA thes.(Viking rocket vehicle)
found: Viking Rocket web site, Nov. 18, 2003(The U.S. Navy's Viking rocket was conceived shortly after WWII as a replacement for the V-2 rocket. The Viking was designed specifically as a research rocket by the Naval Research Laboratory.)
found: Rosen, M.W. The Viking rocket story, 1955:pp. 172-173 (Viking 8 was the first of the bigger Vikings. The Martin designers planned and built a Viking that held 3,500 pounds, almost two tons more fuel; the rockets appearance was changed, no longer could reporters call it "the slim, pencil-like viking")
found: Ley, W. Rockets, missiles, and men in space, 1968:p. 249 (The first Vikings were slim cylindrical rockets) p. 257 (Viking III looked different. Its diameter was 45 inches and it was shorter with a better mass-ratio. Because the tail section was wider the hydrogen peroxide tank no longer had to be coiled around the turbine)
found: Von Braun, W. History of rocketry & space travel, 1969.
found: Directory of U.S. military rockets and missiles web site, May 18, 2004:early missiles and drones page (Viking rockets #8 and later were of a significantly revised design, and were formally designated RTV-N-12a, externally, the RTV-N-12a was slightly shorter than the RTV-N-12, had a much larger diameter, and used triangular fins)
