Daimler D.IIIb

D.IIIb
Type	8-cylinder Vee water-cooled piston engine
National origin	Germany
Manufacturer	Daimler Aircraft Company

The Daimler D.IIIb was an eight-cylinder, water-cooled, V-engine developed in Germany for use in aircraft in 1918.

Little is known of the Daimler D.IIIb (probably referred to as Mercedes D.IIIb), other than it was used for a succession of Daimler fighter prototypes in 1918.

Data from:The Complete Book of Fighters & German Aircraft of the First World War

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Wikipedia