Le Rhône 9J

Another popular rotary piston engine from World War I, Le Rhône 9J was one of a trio of 9 cylinder engines developed by Le Rhône--the 80 hp, the 110 hp and the 130 hp. Le Rhône engines typically had lower fuel and oil consumption than similar engines designed by its parent company Gnome.


  • 9Jb: 120 hp (89 kW)


  • 9-cylinder rotary piston engine
  • Air-cooled
  • Displacement: 920 cubic inches (15.1 litres)
  • Bore x stroke: 112 x 170 mm

used by

  • Hanriot HD.1
  • Morane-Saulnier V
  • Nieuport 17
  • Sopwith Camel