This powerful engine is developed for helicopters and gyrocopters and is equipped with a forced cooling system. While hoovering the natural airflow is not sufficient to cool down the cylinder heads. So a fan driven by the crankshaft, blows air along the aluminium air boxes.

Thanks to the modified camshaft and inlet collector the UL350IHPS generates up to 150HP at 3500 rpm. This forced cooling system has an integrated oil radiator.

The forced cooling system can be installed on all ULPower engines which mean they can all be used in helicopter applications.

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Specifications

  • 4 stroke, 4 cylinder, horizontally opposed
  • Dual (redundant) electronic spark ignition (variable timing)
  • Electronic multipoint fuel injection (pressure and temperature compensated)
  • Electronic RPM limiter
  • Direct propeller drive
  • 5 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

More questions? We've got you covered!

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