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Junkers Jumo 207 D-V2 In-line 6 Diesel Engine, ca. World War II. Creator: Junkers
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Junkers Jumo 207 D-V2 In-line 6 Diesel Engine, ca. World War II. Creator: Junkers
Dr. Hugo Junkers started development of his Diesel aircraft engines in a small factory at Dessau, Germany in 1911. His early engines functioned on the two-stroke cycle principle with piston-controlled parts, as did his later Junkers Jumo Diesels. Among the advantages of later, refined Diesel aircraft engines were lower specific fuel consumption (for long-range applications), lower exhaust gas temperature (for exhaust-driven supercharger installations), and reduced fire hazard as compared to conventional reciprocating aircraft engines. The Jumo 207 was a Jumo 205 with a turbo-supercharger. A Diesel operating on a two-stroke cycle, it incorporated six cylinders and 12 opposed pistons (i.e. 2 per cylinder) in an in-line, liquid-cooled configuration. The Jumo 207 could maintain its sea-level rated power to approximately 7, 900 m (26, 000 ft.). The Jumo 207 A and B powered the Junkers Ju 86 P and R reconnaissance/bomber aircraft that had an absolute ceiling of approximately 15, 000 m (49, 000 ft.)
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EDITORS COMMENTS
This print showcases the remarkable Junkers Jumo 207 D-V2 In-line 6 Diesel Engine, a true marvel of engineering from the World War II era. Created by Dr. Hugo Junkers, this engine was developed in his small factory at Dessau, Germany in 1911 and continued to evolve over time. The Jumo 207 Diesel engine operated on a two-stroke cycle principle with piston-controlled parts, offering numerous advantages over conventional reciprocating aircraft engines. With lower specific fuel consumption for long-range applications and reduced fire hazard, it proved to be an exceptional choice for aviation during that period. One notable feature of the Jumo 207 was its turbo-supercharger, which allowed it to maintain its sea-level rated power even at high altitudes of approximately 7,900 meters (26,000 feet). This made it an ideal choice for powering the Junkers Ju 86 P and R reconnaissance/bomber aircraft that had an impressive absolute ceiling of around 15,000 meters (49,000 feet). As we admire this print capturing the intricate details of the Jumo 207 engine's six cylinders and twelve opposed pistons arranged in an inline configuration, we are reminded of Dr. Hugo Junkers' pioneering spirit and his contribution to aviation history. It serves as a testament to the ingenuity and innovation that emerged during one of humanity's most challenging times - World War II.
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