This engine with reversed rotation (RR) can be used for dual engine aircraft and for pusher applications.
By reversing the rotation direction, the normal ULPower compatible propellers can still be used.
The reversed rotation option is available on the entire ULPower range.
|Stroke||100 mm [3.937 in]|
|Compression Ratio||8,7 : 1|
|Firing Order||1 - 4 - 5 - 2 - 3 - 6|
|Direction of Rotation||Anti-Clockwise - Pilot's view|
|465 Nm [343 ft.lb] @ 2800 rpm|
|200 hp @ 3300 rpm / 185 hp @ 2800 rpm|
|Installed weight||108 kg (including starter motor and alternator)|
|DC output||50 A|
|Oil capacity||4 L|
|Fuel||MOGAS with min. 97 octane rating or AVGAS (98 Oct = 90MON = 94 AKI)|
The power and torque curve of the engine has been established by repeated dyno tests, 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 UL520iS engine corrected to the International Standard Atmosphere conditions at sea level.
The following graph shows the calculated available power of the UL520iS engine at different RPM settings, WOT (wide open throttle) and varying density altitude.
|Maximum dimension in X direction (length)*||723 mm [28.4 inch]|
|Maximum dimension in Y direction (width)*||736 mm [28.97 inch]|
|Maximum dimension in Z direction (height)*||472 mm [18.6 inch]|
For more details please check the technical data document.
These are values at full throttle. When cruising estimated average is UL520 ±25l.
(depending on type of plane, personal style of flying, cruise speed , climate circumstances)
The following is a list of the ULPower engine standard design features, all included at no additional cost.
Please contact us for more info / prices
Note: Pictures may not always represent the exact colour or shape.
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