Jet Propulsion: Advanced theory and operation of simple pulse-jet engines

This 1946 document is very rare, as you will now see. It's one of very few ever published by the original "GALCIT" organization with the (typed, on a mechanical typewriter) Jet Propulsion Laboratory name. A classic, historical report--one of the very first--from the then-new Jet Propulsion Laboratory of Guggenheim Aeronautical Lab at Cal Tech (GALCIT). Pulsejet engine theory, based upon investigations of the German V-1 cruise missile. Very hard to find and now long out-of-print. For many, many years this report remained "Restricted" and very secret. It's a key technical and historical document for every pulsejet and experimental rocketry enthusiast. If you build or fly Dyna-Jet or other small reaction engines, you'll enjoy and use this fine reference resource. In the spring of 1945, von Kármán sent a group of scientists to Europe to question German scientists and engineers about their rapid progress in aviation during the war. Of great importance were their visits to the BMW aircraft engine factor in Munich, the Aerodynamic Laboratory formerly at Peenemünde, and Oetztal, a site in the Tyrolian Alps, where the world's most powerful wind tunnel was then under construction. In December 1945, Dr. von Kármán's group presented their findings in a report which laid out a blueprint for an Air Force research and development facility. According to von Kármán, the report "looked at the basic scientific potential which could change the future." The name "Jet Propulsion Laboratory" became the name by which the Project would be known from then on.