This powerful engine is developed for helicopters and gyrocopters and is equipped with a forced cooling system. While hoovering the natural airflow is not sufficient to cool down the cylinder heads. So a fan driven by the crankshaft, blows air along the aluminium air boxes.
Thanks to the modified camshaft and inlet collector the UL350IHPS generates up to 150HP at 3500 rpm. This forced cooling system has an integrated oil radiator.
The forced cooling system can be installed on all ULPower engines which mean they can all be used in helicopter applications.
|Displacement||3503 cc [213.77 cu in]|
|Bore||105.6 mm [4.157 in]|
|Stroke||100 mm [3.937 in]|
|Compression Ratio||8.7 : 1|
|Firing Order||1 - 3 - 2 - 4|
|Direction of Rotation||Clockwise - Pilot's view|
|315 Nm (232 ft.lbs) @ 2800 rpm|
|150 hp @ 3500 rpm / 131 hp @ 3000 rpm|
|Installed weight||78.4 kg [172.8 lbs] (including starter motor and alternator) + 12kg (forced cooling inclusive oil cooler and lines)|
|DC output||30 Amp|
|Oil capacity||Min 2,5L|
|Fuel||MOGAS with min. 97 RON/88 MON (= 93 AKI) octane rating or AVGAS|
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 UL350iHPS engine corrected to the International Standard Atmosphere conditions at sea level.
|Maximum dimension in X direction (length)*||685.0 mm [26.9 inch]|
|Maximum dimension in Y direction (width)*||736 mm [28.97 inch]|
|Maximum dimension in Z direction (height)*||550 mm [21.6 inch]|
For more details please check the technical data document.
These are values at full throttle. When cruising estimated average is UL350 ±18l.
(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.