Benz Bz.IV
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The Benz Bz.IV was a German six-cylinder, water-cooled, inline engine developed for aircraft use. Deliveries began in 1916, and some 6,400 were produced.


Design and development

The Bz.IV was a dual-camshaft design, with two intake and two exhaust valves per cylinder. The cylinders were cast iron surrounded by a sheet metal cooling jacket. The crankcase was aluminium and pistons were initially steel but later versions had aluminium pistons. A high compression version of the engine (Bz IVü) was produced from 1917 onwards and can be recognised by the red bands painted on each cylinder. In February 1918, pistons from a Bz.IV were the first captured aluminium pistons to be examined by the British
Ministry of Munitions The Minister of Munitions was a British government position created during the First World War to oversee and co-ordinate the production and distribution of munitions for the war effort. The position was created in response to the Shell Crisis of ...
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Applications


Specifications


See also


References

* * Kroschel, Gunter and Helmust Stützer. (1977) ''Die deutschen Militarflugzeuge 1910-1918'' Wilhelmshaven: Lohse-Eissing Mittler.

{{Benz aeroengines 1910s aircraft piston engines