[1][2] This four-cylinder engine however did not perform well in the tests at the contest and was considered too heavy and had a high fuel consumption.
[3][4] Due to lack of success of the aircraft and engine designs produced by Flugwerk Deutschland, the company, where Karl Rapp held a leading position, had to be liquidated in summer 1913.
[1] The newly founded Rapp Motorenwerke had acquired all production facilities of the former Flugwerk Deutschland branch in Munich-Milbertshofen, also including all the aircraft engines.
This enabled Rapp to submit an offer for the immediate delivery of 100 hp four cylinder engines to the Prussian Army Administration already on 1 November 1913.
Each cylinder's exhaust and inlet valves were actuated successively from a single cam lobe on the overhead camshaft via roller tappets and rocker arms.