[1] Five of them powered the German airship Graf Zeppelin, housed in separate nacelles.

The engines developed 410 kW (550 hp) and were of 33.251 L (2,029.1 cu in) capacity.

[1][2] The American USS Akron used eight of them, mounted internally,[3] as did its sister ship Macon.

[4] The engines were reversible, meaning different cams could be engaged allowing the engine crankshaft to run in either direction, enabling reverse thrust.

[6] Data from National Air and Space Museum [7] Related development