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UL260I specs 

 

Displacement

:

2592 cc [158.17 cu in]

Bore

:

105.6 mm [4.157 in]

Stroke

:

74 mm [2.913 in]

Compression Ratio

:

8.16 : 1

Firing Order

:

1 - 3 - 2 - 4

Direction of Rotation

:

Clockwise - seen from cockpit

Maximum Torque
(ISA conditions)

:

207 Nm [152.7 ft.lb] @ 2500 rpm

Power rating
(ISA conditions)

:

95 hp @ 3300 rpm  /  82 hp @ 2800 rpm

All up dry weight

:

72.3 kg [159.3 lbs] (including all accessories such as electric fuel pump, filters, oil cooler, alternator and exhaust system)

DC output

:

35 Amp (+/- 20 Amp available above engine/fuel pump needs)

Oil capacity

:

2.5 L [0.66 US gal]

Fuel

:

Regular unleaded automotive gasoline with min. 95 Octane RON (87 MON = 91 AKI)
AVGAS 100LL may also be used if regular fuel is not available.

UL260I Dimensions 

 

Maximum dimension in X direction (length)*

:

540 mm [21.3 inch]

Maximum dimension in Y direction (width)*

:

654 mm [25.7 inch]

Maximum dimension in Z direction (height)*

:

472 mm [18.6 inch]

Distance from aircraft engine mount frame to
prop flange (X direction)*

:

455 mm [17.9 inch]

* Subject to change during further development

To view a larger image of the engine against a 10x10mm [0.3937 in.] grid click on an image above.
Drawings are subject to modification while we are still finalising the design.

Basic engine (incl. starter & alternator)

:

60.1 kg

[132.5 lb]

Ignition Coils & Leads

:

3.2 kg

[7.0 lb]

ECU & wiring loom

:

1.7 kg

[3.7 lb]

Exhaust, bolts, springs & seals

:

4.1 kg

[9.0 lb]

Electric Fuel Pump

:

0.8 kg

[1.8 lb]

Fuel Filters (pre-filter & fine filter)

:

0.2 kg

[0.4 lb]

Oil/Air Separator & hoses

:

0.8 kg

[1.8 lb]

Rectifier Regulator

:

0.1 kg

[0.2 lb]

Rubber Engine Mounts

:

0.3 kg

[0.7 lb]

Optional Oil Cooler

:

1.0 kg

[2.2 lb]

Engine Oil (2.5 litres)

:

2.2 kg

[4.9 lb]

TOTAL WEIGHT

:

74.5 kg

[164.2 lb]

Centre of Gravity

 


 

 

X-coordinate

Y-coordinate

Z-coordinate

Basic engine including starter, alternator, rubber engine mounts, air filter,
standard exhaust system and 2.5 litres of oil   =   66.7 kg [147 lb]

+161 mm
[+6.34 inch]

+3 mm
[+0.12 inch]

-35 mm
[-1.38 inch]

Click on a picture to enlarge...

Mounting points

 

 

Y-coordinate*

Z-coordinate*

Point 1

125 mm [4.92 inch]

95 mm [3.74 inch]

Point 2

-125 mm [-4.92 inch]

95mm [3.74 inch]

Point 3

125 mm [4.92 inch]

-165mm [-6.49 inch]

Point 4

-125 mm [-4.92 inch]

-165mm [-6.49 inch]

 

>> Position of mounting points are identical to the Jabiru 2200 engine

* Center of crankshaft is origin (0,0 coordinate)

Prop Flange

Direction of rotation :

counter clockwise, looking towards face of flange

Outer flange diam. :

125mm

P.C.D. 101.6mm [4 inch] :

12 holes of 14mm dia.

Power/Torque Curve

The power and torque curve of the engine has been established by repeated dyno tests on our second prototype, which were performed at sea level and in weather conditions close to the ISA standard. The following graph shows the real, available power and torque coming from the crankshaft of the UL260i engine corrected to the International Standard Atmosphere conditions at sea level.

 

Description

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