Yakovlev M-501 and Zvezda M503 and M504 Diesel Engines


One of the largest aircraft engines every made, the 42-cylinder Yakovlev M-501 was modified into the Zvezda M503 marine engine. A further redesign created the 56-cylinder Zvezda M504.

Source: Yakovlev M-501 and Zvezda M503 and M504 Diesel Engines

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