Jabiru A3300 Engine


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Well-Known Member
HBA Supporter
Jun 27, 2015
capital district NY
I like the lower rpm and less parts count of D-Motor

Specifications (Rotax 912 UL/A/F)[edit]
General characteristics
  • Type: four-cylinder, four-stroke liquid / air-cooled engine with opposed cylinders, dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet, dual CD carburetors, mechanical diaphragm pump, electronic dual ignition, electric starter, integrated reduction gear 1 : 2.273 or 1 : 2.43
  • Bore: 79.5 mm (3.13 in)
  • Stroke: 61 mm (2.40 in)
  • Displacement: 1,211.2 cm3 (73.91 in3)
  • Length: 561 mm (22.1 in)
  • Width: 576 mm (22.7 in)
  • Dry weight: 60 kg (132.3 lb) with electric starter, carburetors, fuel pump, air filters and oil system
  • Valvetrain: OHV, hydraulic lifters, pushrods, rocker arms
  • Fuel type: Unleaded: 87 octane AKI (Canada/USA) / 90 octane RON (European) or higher. Leaded fuel and AVGAS 100 LL can be used but are not recommended.
  • Oil system: Dry sump with trochoid pump, camshaft driven
  • Cooling system: Liquid-cooled cylinder heads, air-cooled cylinders

  • Type: D- motor LF39
  • Class: Microlight aircrafts
  • Engine: 6 cylinders, four stroke, liquid cooled
  • Displacement: 3993 cc
  • Stroke: 79 mm
  • Compression ratio: 8/1
  • Max power: 125 Hp at 3000 RPM
  • Max continuous power: 112Hp hp at 2800 RPM
  • Used fuel: 91, 93, 95 oct. 98 oct. or avgas
  • Fuel consumption: 19 liter at 75% performance
  • Maximum torque: 285 Nm at 2500 RPM
  • Intake: Multipoint sequential fuel injection
  • Alternator: 25 Amp integrated
  • Electric starter: 1.1 KW integrated
  • Ignition: Double
  • Installed dry weight (liquids 7kg): 78 kg

Included accessories
Delivered with standard engine package:

  • The engine with integrated alternator, water pump, oil pump and electric starter.
  • Rubber mounts (dimensions same as Jabiru and UL power)
  • Fuel pump, fuel filter and injectors
  • 2 ignition coils, spark plugs and ignition leads
  • ECU and loom (standard redundant injection)
  • 3 water temperature sensors (2 for ECU and one for instrument)
  • Oil pressure and oil temperature sensor
  • Oil radiator, oil filter, oil tank with breather system and hose + connectors
  • Exhaust pipes included and lambda probe.
  • The liquid cooling system (radiator, hoses and expansion tank) are not included.
The different aircraft and helicopters, equipped, required different cooling configurations. It is too difficult to anticipate a solution for every installation. Attempting to provide a universal solution would be both inefficient and overly expensive.

The weight of the engine completely installed with liquids is 85 and 88 kg depending on installation. This weight does not include the engine mount or propeller.

The actual TBO time is 1500 hours.


  • Plywood crate (FAO-IPPC-ISPM15), packaging and handling
Warranty: 2 year