100 - 300hp piston engine UL390i

50 - 100kgfor light aircraftfor ULM

If you want more power and mogas 98 is available, the UL390iS is an excellent choice for your 2 or 4 seats plane. This heavy duty engine is the perfect all-rounder. Dual (redundant) electronic spark ignition (variable timing) Electronic multipoint fuel injection (pressure and temperature compensated) Electronic RPM limiter Direct propeller drive 7 bearing crankshaft with surface hardening treatment and additional large thrust bearing (ball bearing type) Single central camshaft Push rods, tappets and OHV (hydraulic compensators have not been used) Wet sump forced lubrication with integrated pressure regulator Ram air cooled cylinders and cylinder heads Integrated permanent magnet AC generator, external rectifier-regulator Electric starter Electric fuel pump and pressure regulator to eliminate vapor lock and facilitate starting even under adverse conditions Displacement - 3888 cc (237.2 cu in) Bore - 105.6 mm [4.157 in] Stroke - 74 mm [2.913 in] Compression Ratio - 8.16 : 1 Firing Order - 1 - 4 - 5 - 2 -3 - 6 Direction of Rotation - Clockwise - seen from cockpit Maximum Torque (ISA conditions) - 320 Nm [236 ft.lb] @ 2800 rpm Power rating DC output - 50 A Oil capacity - 4 L [1.05 US gal] Fuel - Regular unleaded automotive gasoline with min. 95 Octane RON (87 MON = 91 AKI) AVGAS 100LL may also be used if regular fuel is not available.