Engine 305H
Type Opposed two cylinder two stroke boxer
Output 25HP at 7000 rev/min
Total Displacement 312 cm3
Cooling System Air > 25 m/sec
Bore 65 mm
Stroke 47 mm
Compression ratio 10,7:1
Cylinders Light alloy metal ceramic plated castings
Cylinder heads Light alloy casting
Crankcase Solid with cylinder
Crankshaft Forget steel supported by special double-row ball bearings
Fuel metering Fuel injection into the throttle body
Ignition system Programmed inductive discharging system managed by ECU
Exhaust system Stubs/Mufflers
TBO (Time Between Overhauls) 250 hours
Life - Time 1250 hours
Communication from ECU to client system by RS232
Operating temperature -30 +65°C
Alternator 28,5V-120A
Rotation Counter clockwise (looking from the propeller side)

=> 95 Oct. petrol/oil mixture 2% syhthetic oil for 2 stroke engines

Weight 13,00Kg
Specific consumption Better than 350gr/HP/h
Redundancy Double ignition, double pick-up and double TPS
Autorecovery Throttle body and pick-up

Complete with:

  • Fuel pump
  • Fuel regulator
  • Spark plugs
  • HT coil
  • Fuel filter
  • 120A 28V Brushless Generator
  • External Regulator
  • Double ignition
  • Throttle body with servo and air box filter
  • Rubber mounting system
  • Ground test software, data logger and engine map upgrade system
  • CD instruction manual and software
  • Pre - mounting measured tolerance certificate
  • Sensors on the engine:
2 x EGT
2 x CHT
2 x Throttle position
2 x Crackshaft position
Air temperature
Three Axis Accelerometer
Fuel pressure
Atmospheric pressure


Information available from power regulator via its own RS232:

  • Output Voltage
  • Input Voltage
  • Temperature
  • Power in use


All sensors data are available via ECU RS232 plus:

  • Fuel consumption in real time
  • Ignition  Coil (diagnostic)
  • Injector (diagnostic)
  • Throttle servo (diagnostic with auto recovery)
  • Fuel pump (diagnostic with auto recovery)
  • Pick up (diagnostic with auto recovery)


Optional extras:

  • Set of mufflers
  • Harness (for ground test only)


Picture Description 
   Set of Muffler