[3] Relative to the Argus 110 hp engine the main improvement besides the increased bore appears to be the introduction of a second magneto.

The second magneto was driven via spur gears from the crankshaft and was located on the right hand side of the engine.

The oil pump also had been relocated, now sitting separately on the engine case to the left, driven via spur gears from the camshaft at the propeller end.

When this engine later was tested by the Deutsche Versuchsanstalt für Luftfahrt in Berlin-Adlershof from 15 to 17 November 1913 it was and found to produce about 110 hp (82 kW) at 1,330 rpm.

First accounts for the use of this engine can be found in the reports for the 'Prinz-Heinrich-Flug' flying competition of 1913, which took place from May 10–17, 1913.