ULPower UL520i explained
The ULPower UL520i is a Belgian aircraft engine, designed and produced by ULPower Aero Engines of Geluveld for use in homebuilt aircraft.[1]
Design and development
The engine is a six-cylinder four-stroke, horizontally-opposed, 52541NaN1 displacement, air-cooled, direct-drive, gasoline engine design. It employs dual electronic ignition and produces 180to at 3300 rpm.[1]
Variants
- UL520i
Base model with fuel injection and a compression ratio of 8:1, producing 1800NaN0 at 3300 rpm[1] [2]
- UL520iS
Model with 8.7:1 compression ratio, fuel injection, producing 2000NaN0 at 3300 rpm[3]
- UL520iST
Model under development, fuel injection, turbo-normalizer, producing 2200NaN0 at 2700 rpm sea level[4]
- UL520iSA
Inverted oil system version of the UL520iS, producing 2000NaN0 at 3300 rpm[5]
- UL520iHPS
Model under development[6]
- UL520iSRR
Model with reversed rotation, 8.7:1 compression ratio, fuel injection, producing 2000NaN0 at 3300 rpm[7] Applications
Notes and References
- Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 262-263. Flying Pages Europe SARL, 2015.
- Web site: UL520i. ULPower Aero Engines. ulpower.com. 21 April 2018.
- Web site: UL520iS. ULPower Aero Engines. ulpower.com. 21 April 2018.
- Web site: ULPower Aero Engines presents prototype UL520iSTurbo at Sun n Fun and Aero Friedrichshafen . 4 March 2020. Eddy . ulpower.news. 26 February 2020. https://web.archive.org/web/20200304154454/http://ulpower.news/ulpower-aero-engines-present-at-sun-n-fun-and-aero-friedrichshafen. 4 March 2020.
- Web site: UL520iSA. ULPower Aero Engines. ulpower.com. 21 April 2018.
- Web site: UL520iHPS. ULPower Aero Engines. ulpower.com. 21 April 2018.
- Web site: UL520iSRR. ULPower Aero Engines. ulpower.com. 21 April 2018.
- Web site: Aircraft . www.darkaero.com . 9 June 2020. https://archive.today/20200609221847/https://www.darkaero.com/aircraft/. 9 June 2020. live.
