UL260i
Type	Piston aircraft engine
Manufacturer	ULPower
Major applications	Micro Aviation Bantam

The ULPower UL260i is a family of aircraft engines, produced by ULPower in Belgium.

Design

The UL260i series are all lightweight, four-cylinder, four-stroke, horizontally-opposed, air-cooled, direct drive engine designs that feature FADEC with multipoint fuel injection and dual ignition systems.^[1]

Variants

UL260i

Base model, fuel injection, compression ratio of 8.16:1, producing 97 hp (72 kW)^[1][2]

UL260iS

Model with a higher compression ratio of 9.10:1, fuel injection, producing 107 hp (80 kW)^[3]

UL260iSA

Aerobatic model with a higher compression ratio of 9.10:1, fuel injection, producing 107 hp (80 kW)^[4]

UL260iF

Model with a higher compression ratio of 9.10:1, fuel injection, producing 100 hp (75 kW), due to French regulatory requirements.^[5]

Applications

Specifications

Data from Tacke^[1]

General characteristics

• Type: Flat-4
• Bore: 106 mm (4.2 in)
• Stroke: 74 mm (2.9 in)
• Displacement: 2,592 cm³ (158.2 cu in)
• Length: 543 mm (21.4 in)
• Width: 654 mm (25.7 in)
• Height: 475 mm (18.7 in)
• Dry weight: 72 kg (159 lb)

Components

• Valvetrain: single central camshaft, solid lifters, pushrods, rockers and OHV
• Fuel system: dual electronic fuel injection
• Fuel type: Mogas (95 Oct.RON / 91 AKI min.) / AVGAS
• Oil system: Wet sump
• Cooling system: Air-cooled

Performance

• Power output: 95 hp (70.8 kW) at 3,300 RPM
• Compression ratio: 8.16:1