Font: Arial | Trebuchet | Verdana | Tahoma   Size: +F | -F   Cookies: Remove   Location: Homebuilt Aircraft


ULPOWER Aero Engines

Formed in 2006, ULPOWER Aero Engines is a small Belgian company which started as a joint venture by a number of individuals and companies. Their intention is to develop and manufacture a light weight aero engine where power and reliability is priority number one.

This has resulted in the UL260 and UL350 family of engines. Designed as a four cylinder, air cooled, direct drive, multipoint injected and FADEC equipped low RPM engine. To this day several aircraft manufacturers have included this engine in their designs. One could say that the designers have succeeded in their goals.

2012 saw the introduction of a new range of six cylinder model from this company. Based on the same construction principles they continue their novel design philosophy into higher powered engines.

ULPOWER design

ULpower engines are built around proven technology. Multi point electronic fuel injection is used to replace the inefficient carburetors of earlier times resulting in lower fuel consumption, no carburettor ice with redundant variable timing dual ignition. The propeller is direct driven reducing weight even more.

This has resulted in an Aero engine with an excellent power to weight ratio suitable for use in ultra light, LSA and other small experimental homebuilt aircraft. If you are looking for a modern, non complex (Rotax), light weight, fuel efficient engine then this is the one.


ULPOWER UL260i Aero EngineULPOWER UL260i Aero Engine
ULPOWER UL260i Aero Engine

The engine has a Full Authority Digital Control and it controls all aspects of operation, altitude compensation, the amount of fuel injected and the timing of the ignition. All of this results in a stable RPM, no icing, lower fuel consumption, easier starting (just press the button and go) and good throttle response. Follow the next link for more detailed information about ULPower FADEC.

The choice for a FADEC driven engine was relatively easy: Why design a new engine and use magneto and carburettor technology from the last century? As a result carb ice is avoided and fuel economy is improved, advantages a pilot can live with!

Air cooled

Another manufacturer produces water cooled aircraft engines. As this brings along more complexity, weight and points of failure. ULPOWER has chosen to design an air cooled engine with a large enough fin area suitable for high power in high temperature situations.

Modern features

ULpower has included a number of modern features in their engines which are very attractive to aircraft builders. Below a list:

  • Modern Technology four stroke, air cooled, four cylinder opposed engine
  • Dual (redundant) electronic spark ignition (variable timing)
  • Multipoint electronic fuel injection with automatic altitude and temperature compensation
  • Electronic RPM limiter
  • Direct propeller drive
  • Wet sump forced lubrication with integrated pressure regulator
  • Five bearing crankshaft with thrust ball bearing
  • Ram air cooled cylinders and cylinder heads
  • High fuel efficiency
  • No carburettor icing problems
  • Excellent power to weight ratio
  • Electric fuel pump and pressure regulator to eliminate vapor lock and facilitate starting even under adverse conditions

More technical information on the UL260i engine in these pdf files: English, French, German and Dutch.

Engine development

The company is continuing development into the fuel injected UL350iS (118/130 bhp @ 3300 RPM) and even an 107 bhp aerobatic version (UL260iSA). Read more about that in ULpower Overview.

Six Cylinder engines

AERO 2012 saw the introduction of four new six cylinder engines from ULpower ranging in power output from 140 to 200 hp. The engines are called UL390 and UL520 and the installed weight is 100 and 108 kg. Both engines are FADEC controlled and enjoy these benefits too. For more information on this exiting development visit ULpower.

Installation images (four cyl)

These images were taken at AERO in Friedrichshafen (Germany) and show an installed UL260i engine, click them for a slide show.

UL260i Aero Engine UL260i Aero Engine UL260i Aero Engine UL260i Aero Engine

For more detailed engine and pricing information we refer you to the website of ULpower.

Written by EAI.

Ten Year Anniversary

Copyprotection EAI

 TopAviation          AvitopAvitop