Rapp 100 hp

[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.

Flugwerk Deutschland engine of 1912, from which the Rapp 100 hp was derived.
Flugwerk Deutschland engine, 1912, intake side with Cudell-G.A.-carburettor .