Development
Based on the guidelines laid down by the Reichswehrministerium ("Reich's Ministry of Defence"), in 1929 Daimler-Benz began development of a new aero engine of the 30-litre class: a liquid-cooled inverted-Vee 12-cylinder piston engine. This was designated F4, and by 1931 two prototypes were running on the test bench. These were followed by the improved F4 B, which became the prototype for the DB 600.
In 1933, Daimler-Benz finally received a contract to develop its new engine and to build six examples of the DB 600. For the year after, the DB 600 was the only German aero engine in the 30-litre class. In total, 2281 DB 600s were built.
The DB 601A-1 was a development of the DB 600 with direct fuel injection. Like all DB 601s, it had a 33.9 litre displacement. The first prototype with the direct fuel injection, designated as F4E, was test run in 1935, and an order for 150 engines was placed in February 1937.
Serial production begun in November 1937, and ended in 1943, after 19,000 examples of all types were produced.
Read more about this topic: Daimler-Benz DB 601
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