Shortly before World War 2: Animation showing an aircraft emitting radio waves towards German cities of Berlin and Leipzig. A man sits behind a radio directional finding network. A radio antenna receives signals. Animation showing radio directional finding networks in Berlin and Leipzig detects aircraft in Germany. A man’s hand plotting a map with a long ruler. Animation depicts German radio directional finding network detecting aircraft location. A Junkers Ju 52 transport aircraft in hangar. A second Ju 52 on ramp with tail being elevated in flight position on snow-covered airfield. Nose and engine of the Ju 52. Pilot using directional finding equipment onboard the Ju 52.
German aeronautical scientists testing radio directional finding network, shortly before World War 2. Men opening partition slide of a barn that serves as their laboratory. Small dish-shaped antenna in barn and large search antenna on ground. The two scientists in white lab coats set up radio equipment. Towers and snow-covered field in the background. Wire hanging over a scientist setting up radio. A biplane aircraft marked “DEUTSCHE LUFTREEDEREI (German Air Transport)”, with rear cockpit enclosed. A Junkers W 33 (D-1957) transport aircraft with wheel gear instead of floats carrying electronic gear. The Junkers W 33 has visible external antenna. Aerial view of the Junkers W 33 in flight. Two men with radio antenna of a Dornier Do X flying boat. Dornier Do X flying boat aircraft in water is seen as it taxis away from dock and then in flight low over water.
A Junkers G.38 transport aircraft (D-2500) in flight over Germany in the late 1930s, before World War 2. A small, single-place, tailless monoplane with turned down wing tips in flight. A Fieseler Fi 156 Storch making short takeoff and steep climb over control tower of an airfield. The first functional helicopter, the Focke-Wulf Fw 61 helicopter (D-EKRA) (later Focke-Achgelis Fa 61), demonstrating its hovering ability.
A Lufthansa Junkers Ju 52 (“Albert Dossenbach”) taking off overhead and in flight over Germany, pre World War 2. A Heinkel He 111 transport airliner (D-ABYE) with Nazi Swastika empennage in flight to left. A Lufthansa Junkers Ju-86 in flight. Lufthansa Focke-Wulf Condor transport plane (“Brandenburg”) in flight to right. Aerial view of airfield showing rows of Ju 52 transport planes and Focke-Wulf Fw-56 Stösser trainer aircraft.
A German Aeronautical research facility in Germany, before World War 2. Materials testing machines inside the research facility. Technicians turning crank handle of a cylinder test machine. A machine with coils. Various gauges and valves of a machine. Gauges measuring the speed of engines. A multi-cylinder pulse machine. A Tacho Waage speedometer. Scientist inspects machine. Smoke rises from large chimneys beside towers. A soundproof engine test building. A propeller running on high speed inside the soundproof engine test building to test engine reliability.
German Aeronautical research facility in Stuttgart, Germany before World War 2. German technicians opening doors on top of aircraft engine test room. Propellers run on high speed during engine tests. A technician opens door. A large machine that runs engine tests. Technicians operating test consoles. A Tacho Waage speedometer measures engine test speed.
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