The ULPower UL520i is a Belgian aircraft engine, designed and produced by ULPower Aero Engines of Geluveld for use in homebuilt aircraft.[1]
| UL520i | |
|---|---|
| Type | Aircraft engine |
| National origin | Belgium |
| Manufacturer | ULPower |
Design and development edit
The engine is a six-cylinder four-stroke, horizontally-opposed, 5,254 cc (320.6 cu in) displacement, air-cooled, direct-drive, gasoline engine design. It employs dual electronic ignition and produces 180 to 200 hp (134 to 149 kW) at 3300 rpm.[1]
Variants edit
- UL520i
- Base model with fuel injection and a compression ratio of 8:1, producing 180 hp (134 kW) at 3300 rpm[1][2]
- UL520iS
- Model with 8.7:1 compression ratio, fuel injection, producing 200 hp (149 kW) at 3300 rpm[3]
- UL520iST
- Model under development, fuel injection, turbo-normalizer, producing 220 hp (164 kW) at 2700 rpm sea level[4]
- UL520iSA
- Inverted oil system version of the UL520iS, producing 200 hp (149 kW) at 3300 rpm[5]
- UL520iHPS
- Model under development[6]
- UL520iSRR
- Model with reversed rotation, 8.7:1 compression ratio, fuel injection, producing 200 hp (149 kW) at 3300 rpm[7]
Applications edit
Specifications (UL520i) edit
Data from Tacke and manufacturer[1][2]
General characteristics
- Type: Six-cylinder, four-stroke aircraft engine
- Bore: 105.6 mm (4.2 in)
- Stroke: 100 mm (3.9 in)
- Displacement: 5,254 cc (320.6 cu in)
- Length: 723 mm (28.5 in)
- Width: 736 mm (29.0 in)
- Height: 472 mm (18.6 in)
- Dry weight: 108 kg (238.1 lb), ready to fly
Components
- Fuel system: fuel injection
- Fuel type: gasoline
- Cooling system: air
- Reduction gear: none
Performance
- Power output: 180 hp (134 kW) at 3300
- Compression ratio: 8:1
See also edit
Aircraft of comparable role, configuration, and era
Related lists
References edit
- ^ a b c d Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 262-263. Flying Pages Europe SARL, 2015. ISSN 1368-485X
- ^ a b ULPower Aero Engines. "UL520i". ulpower.com. Retrieved 21 April 2018.
- ^ ULPower Aero Engines. "UL520iS". ulpower.com. Retrieved 21 April 2018.
- ^ Eddy (26 February 2020). "ULPower Aero Engines presents prototype UL520iSTurbo at Sun n Fun and Aero Friedrichshafen". ulpower.news. Archived from the original on 4 March 2020. Retrieved 4 March 2020.
- ^ ULPower Aero Engines. "UL520iSA". ulpower.com. Retrieved 21 April 2018.
- ^ ULPower Aero Engines. "UL520iHPS". ulpower.com. Retrieved 21 April 2018.
- ^ ULPower Aero Engines. "UL520iSRR". ulpower.com. Retrieved 21 April 2018.
- ^ "Aircraft". www.darkaero.com. Archived from the original on 9 June 2020. Retrieved 9 June 2020.