If you want more power and mogas 98 is available, the UL390iS is an excellent choice for your 2 or 4 seats plane.
This heavy duty engine is the perfect all-rounder.
|Displacement||3888 cc (237.2 cu in)|
|Bore||105.6 mm [4.157 in]|
|Stroke||74 mm [2.913 in]|
|Compression Ratio||8.16 : 1|
|Firing Order||1 - 4 - 5 - 2 -3 - 6|
|Direction of Rotation||Clockwise - seen from cockpit|
|320 Nm [236 ft.lb] @ 2800 rpm|
|140 hp @ 3300 rpm / 130 hp @ 2800 rpm|
|Installed weight||100 kg [220 lbs] (including all accessories, oil and exhaust)|
|DC output||50 A|
|Oil capacity||4 L [1.05 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.
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 UL390i engine corrected to the International Standard Atmosphere conditions at sea level.
The following graph shows the calculated available power of the UL390i engine at different RPM settings, WOT (wide open throttle) and varying density altitude.
For more information on ISA, density altitude, interpretation of this graph, the conversion of the figures to actual atmospheric conditions, refer to the "Engine Resources" section on our website and more specifically: "ISA conditions & conversion".
|Maximum dimension in X direction (length)*||723 mm [28.4 inch]|
|Maximum dimension in Y direction (width)*||654 mm [28.97 inch]|
|Maximum dimension in Z direction (height)*||472 mm [18.6 inch]|
For more details please check the installation manual.
These are values at full throttle. When cruising estimated average is UL390 ±21l.
(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.
All prices indicated are excluding taxes and transportation costs.
Deliveries to private individuals within the European Union are subject to 21% Belgian VAT. Prices subject to change without notice.