Natter Interceptor Project: CIOS Target Number 5/182a Jet Propulsion.

The Natter Interceptor - a forerunner of modern drones - was a pilotless German wooden aircraft designed to destroy Allied bombers at high altitudes. 150 were made, and were discovered at the end of the war together with the designers, engineers and workers who manufactured them. This brief volume was one of a series produced by the Combined Intelligence Objectives Sub-Committee (CIOS) Reports, in 1944 - 1945.

This series consists of over 700 published accounts of specific German scientific, medical, and technological developments during World War II. Most reports are based on detailed interviews with several German scientists, doctors, technicians, or other officials, and they often incorporate copies of photographs, drawings, and German-language documents. The majority of the reports concern industrial processes and technological developments related to the German war effort. The development and production of aluminium, steel, fuels, ordnance, ammunition, tanks and other vehicles, chemical warfare, optical equipment, and pharmaceuticals all provide examples of these subjects.

Luftwaffe-related topics include aviation medicine, aircraft maintenance, high-speed airplane design and development, and engine design and development. "The German Commercial Air Transport Industry and Related Aeronautical Activities and Developments" constitutes a massive study of the pre-war development of Lufthansa, German airports, and air traffic control, with specialized features on a typical wartime fighter control centre and specific types of large German aircraft.

Most German Navy reports pertain to U-Boats, including studies of the Type XXI submarine, the rotary wing kite used by some U-Boats, submarine pens in France, and sound absorbent coatings for U-Boats.