Mercedes D.I

The Mercedes D.I (also known as the Type E6F) was a six-cylinder, water-cooled, SOHC valvetrain inline engine developed in Germany for use in aircraft in 1913. Developing 75 kW (100 hp), it powered many German military aircraft during the very early part of World War I.

D.I
Type	Inline piston engine
National origin	Germany
Manufacturer	Mercedes
First run	1913
Developed into	Mercedes D.II

Applications

• AEG B.I
• AEG G.I
• Albatros B.I
• Albatros G.I
• Aviatik B.I
• DFW B.I
• DFW Floh
• Fokker D.I
• Friedrichshafen FF.19
• Gotha G.I
• LFG V 39
• LFG Roland Arrow
• Stahlwerk-Mark R.V
• Pfalz E.V

Specifications (D.I)

Data from "Albatros D.I-D.II","Airplane Engine Encyclopedia"

General characteristics

• Type: 6-cylinder, inline piston engine
• Bore: 120 mm (4.72 in)
• Stroke: 140 mm (5.51 in)
• Displacement: 9.48 L (578.51 cu in)
• Dry weight: 201.6 kg (444 lb)

Components

• Valvetrain: SOHC
• Reduction gear: Direct drive, left-hand tractor

Performance

• Power output: 75 kW (100 hp)
• Specific fuel consumption: .53 lb/(hp·h)
• Oil consumption: .033 lb/(hp·h)

See also

Comparable engines

• Rolls-Royce Hawk

Related lists

• List of aircraft engines

References

• Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 98.

Further reading

• Düsing, Michael (2022). German & Austro-Hungarian Aero Engines of WWI. Vol. 2. n. p.: Aeronaught Books. ISBN 978-1-953201-52-2.