The Aichi Ha-70 was a compound engine composed of two 1,700 hp 12-cylinder liquid-cooled inverted V-12 Aichi Atsuta aircraft engines mounted to a common gearbox. The only aircraft powered by the Ha-70 was the Yokosuka R2Y , an Imperial Japanese Navy Air Service (IJNAS) prototype reconnaissance aircraft that was designed and built near the end of World War II .
6-535: In common with Daimler-Benz, Aichi Kokuki KK joined two Aichi Atsuta engines to drive a single propeller through a combining gearbox in very similar fashion to the Daimler Benz DB 606 (two Daimler-Benz DB 601 engines coupled to a gearbox), The Yokosuka R2Y prototype reconnaissance aircraft required a new engine of 3,400 hp (2,535 kW) and after studying the Daimler-Benz DB 606A-2 engine that powered
12-465: A team from the League of Nations occasionally visited German aircraft manufacturers to monitor the ban on military aircraft research and production. A Japanese military attache who was a member of the monitoring team, let Heinkel know, confidentially and in advance, of the planned visits. Heinkel thus succeeded in continuing its design on the aircraft ordered by Aichi Aircraft without being spotted. In 1943
18-589: The Heinkel He 119 single-engine reconnaissance bomber, Aichi determined that the required horsepower could be attained by coupling two Atsuta engines with a common gearbox. To obtain the required power the Atsuta would require up-rating by at least 300 hp (224 kW) horsepower; Aichi continued to improve the Atsuta 32, eventually extracting the required 1,700 hp (1,268 kW) The two inverted Vee Atsuta engines were mounted side-by-side, each rotated outboard from
24-838: The centre-line so that the inner banks were upright, with sufficient room between them for the exhaust manifolds. The engines were attached to a gearbox that combined the two separate engine drives into a single output shaft. Fitted to the R2Y the Ha-70 was mounted behind the pilot, requiring a long drive shaft to drive the nose-mounted gear box that mounted the six-bladed propeller. Data from The First Naval Technical Arsenal, August 22, 1945 Comparable engines Related lists Aichi Kokuki KK 35°08′02″N 136°53′49″E / 35.1337981°N 136.8969623°E / 35.1337981; 136.8969623 Aichi Kokuki KK ( 愛知航空機株式会社 , Aichi Kōkūki Kabushiki Kaisha , Aichi Aircraft Co., Ltd.)
30-509: The company relied initially on technical assistance from Heinkel , which influenced some of their designs. Later, with the prodding and support of the Imperial Japanese Navy , the company started making seaplanes using technology imported from Short Brothers in the UK . During the inter-war period, Aichi was the beneficiary of technology transferred from Heinkel of Germany. At the time,
36-628: Was a Japanese aerospace manufacturer which produced several designs for the Imperial Japanese Navy . After the war, the company was reorganized as Aichi Machine Industry Co., Ltd (愛知機械工業) where they made small kei cars until 1966 when they were integrated into Nissan and developed the Nissan Sunny and Nissan Vanette . The company was established in 1898 in Nagoya as Aichi Tokei Denki Seizo Kabushiki Kaisha (Aichi Watch and Electric Manufacturing Co., Ltd.). Aircraft production started in 1920 , and
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