title: GEN 125
text: # GEN 125
  
  The GEN 125 is a Japanese aircraft engine, designed and produced by the GEN Corporation for use in ultralight helicopters.
  
  ## Design and development
  
  The engine is a twin cylinder two-stroke, horizontally-opposed, air-cooled, 124 cc (7.6 cu in), direct-drive, gasoline engine design. It employs capacitor discharge ignition and produces 8 hp (6 kW) at 8500 rpm. The engine weighs 3 kg (6.6 lb).
  
  The engine was designed specifically for the GEN H-4 helicopter, in which four of the engines are mounted to provide redundancy.
  
  ## Variants
  
  ### GEN 125
  
      Base model producing 8 hp (6 kW)
  
  ### GEN 125-F
  
      Model producing 10 hp (7 kW)
  
  ## Applications
  
  * GEN H-4
  
  ## Specifications (GEN 125)
  
  Data from World Directory of Leisure Aviation 2011-12
  
  ### General characteristics
  
  * Type: Twin cylinder, two stroke aircraft engine
  * Displacement: 124 cc (7.6 cu in)
  * Dry weight: 3 kg (6.6 lb)
  
  ### Components
  
  * Fuel type: gasoline
  * Cooling system: liquid or air
  
  ### Performance
  
  * Power output: 8 hp (6 kW) at 8500 rpm
  