Zündapp 9-092

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Zündapp Z 9-092 iim Technikmuseum Hugo Junkers Dessau 2010-08-06 Detail 01.jpg
Rear view of the 9-092 engine on display at the Technikmuseum Dessau
Type Air-cooled inverted inline-four engine
Manufacturer Zündapp
First run 1938
Major applications Gotha Go 150, Siebel Si 202B
Number built c.200
Developed from Zündapp Z 9-090

The Zündapp 9–092 or Z 92 was a German four-cylinder, air-cooled, inline aero engine made by Zündapp and used in light aircraft of the late-1930s.[1]

Design and development[edit]

The engine was developed from the smaller Zündapp 9-090. This inverted engine featured dual gear-driven camshafts with the valve rocker cover acting as the oil tank. It featured a single Bosch magneto ignition system. A total of approximately 200 engines were produced.


Engines on display[edit]


General characteristics

  • Type: Four-cylinder air-cooled inverted inline piston aircraft engine
  • Bore: 85 mm (3.35 in)
  • Stroke: 88 mm (3.46 in)
  • Displacement: 2 L (122 cu in)
  • Length: 800 mm
  • Width: 350 mm
  • Dry weight: 60 kg (132 lb


  • Valvetrain: Overhead valve
  • Fuel system: Downdraught carburettor
  • Cooling system: Air-cooled


See also[edit]

Comparable engines
Related lists


  • Kyrill von Gersdorff, Helmut Schubert, Stefan Ebert: Flugmotoren und Strahltriebwerke, Bernard & Graefe Verlag München, ISBN 978-3-7637-6128-9