The He 70 is known mainly as the ancestor to the Heinkel He 111, which had similar elliptical wings and streamlined fuselage in a twin-engine configuration. While the He 70 saw only limited service in training capacities during World War II, it was the Luftwaffe 's first Schnellbomber and served as the antecedent for some of the bombers involved in the Battle of Britain. ( August 2018) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources. Other problems included poor defensive armament, short range and poor view from the cabin, all of which led to the Hungarian He 170A fleet being prematurely retired and replaced with obsolescent Heinkel He 46 parasol-wing monoplanes, until Focke-Wulf Fw 189 "Uhu" medium altitude observation aircraft could be introduced. Moreover, each wing contained a non-self-sealing 210-litre (47-imperial-gallon) fuel tank, which may have further added to the aircraft's reputation for catching fire. Elektron is very light yet strong, but burns readily when ignited and is difficult to extinguish. Parts of the airframe were made out of an extremely flammable magnesium alloy called " Elektron", though the majority of the monocoque fuselage was Duralumin. 18 were used by the Royal Hungarian Air Force from 1937 to 1942.Ī major weakness of the He 70 in military use was the fire risk. The new engines raised the top speed of the aircraft from 360 to 435 km/h (224 to 270 mph). #Blitz bomber crew licensePowered by a Gnome-Rhône Mistral Major radial engine, the engines were built under license in Hungary as the WM-K-14, but the air frame and final assembly were in Germany. The He 70K (later given the RLM number: He 170) was a fast reconnaissance airplane export variant used by the Hungarian air force. There they were known as the Rayo, Spanish for "lightning". Twenty-eight aircraft were sent in the late 1930s to Spain with the German-manned Legion Condor, where they were used during the Spanish Civil War as fast reconnaissance aircraft. As soon as purpose built designs became available, it was relegated to use as a liaison and courier aircraft. The Luftwaffe operated He 70s from 1935, initially as a light bomber and reconnaissance aircraft. Remaining aircraft were transferred to the Luftwaffe in 1937. The route was part of the South America mail service provided by Luft Hansa that continued via Bathurst, The Gambia to Natal, Brazil, using Junkers Ju 52/3m and Dornier Wal flying boats. He 70s were flown abroad from Stuttgart to Seville between 19. Luft Hansa operated He 70s between 19 for a fast flight service which connected Berlin with Frankfurt, Hamburg and Cologne, as well as between Cologne and Hamburg. and proved to have excellent performance, setting eight world records for speed over distance, and reaching a maximum speed of 377 km/h (234 mph). The pilot and radio operator were seated in tandem, followed by a cabin seating four passengers in pairs facing each other. This allowed a smaller radiator to be used, which also retracted at high speed to further reduce drag. It was powered by a 470 kW (630 hp) BMW VI V-12 engine cooled with ethylene glycol rather than water. In order to meet the demanding speed requirements, care was taken to minimize drag, with flush rivets giving a smooth surface, and fully retractable main landing gear. It had a cantilever low-wing monoplane, with an aerodynamically efficient elliptical wing and retractable undercarriage, and a single nose-mounted engine. The Heinkel He 70 Blitz (Lightning) was designed in the early 1930s as a mailplane for Deutsche Lufthansa in response to a request for an aircraft faster than the Lockheed Model 9 Orion (used by Swissair) to service short routes.
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