Aircraft engine Mercedes D.IVa

The Mercedes D.IVa was an aircraft engine with six-cylinder in line produced by the German company Daimler-Motoren-Gesellschaft in 1916 to replace, in the range 200-299 hp ("klasse IV"), the previous model Mercedes D.IV with 8 cylinders. The D.IVa was produced in various versions, for a total of 4550 exemplares, and it was developed until the end of the war. In the search for ever greater power at high altitude, some supercharged versions with centrifugal multistage compressors were built in cooperation with various manufacturers: Schwade & Co, Brown Boveri, AEG and Siemens-Schuckert. Finally, an experimental version with direct fuel injection was developed in 1918 in collaboration with Junkers.