Operating Manual
UL
POWER
UL
260,
UL
350,
UL
390,
UL
520
M0310: OM 260 - 520A01 Revision No: 04
Date:
2021-11-18
Page:
3
of
23
Safety information
The engine should only be installed and operated by persons familiar with the use of the engine
and informed with regard to possible hazards.
Familiarize yourself with the installation, maintenance and operational limits of your ULPower
engine. Failure to follow the instructions in these manuals can result in a serious malfunction or
loss of power in flight , with possible loss of life, injury or damage to the equipment. Limit
yourself to the operations/ maintenance mentioned in ULPower manuals. If you are uncertain
and/or in need of extra information please contact a ULPower authorized sales or service
centre.
This non certified engine is designed for possible application on aircraft used in VFR conditions
which have the capabilities of controlled gliding without engine power.
You should be aware that any engine may malfunction at any time. This could lead to a crash
landing and possible severe injury or even death. For this reason, we recommend strict
compliance with the maintenance and operation manuals and any additional information which
may be given to you by your authorized sales or service centre .
Never fly the aircraft equipped with this engine at locations, airspeeds, altitudes, or other
circumstances from which a successful no-power landing cannot be made, after sudden engine
stoppage.
Make sure you know what engine you are using. Only engines UL260iSA /UL350iSA/
UL390iSA/UL520iSA are suited for acrobatics (inverted flight, etc.).
It should be clear that the choice, selection and use of this particular engine on any aircraft is at
the sole discretion and responsibility of the aircraft manufacturer, assembler and owner/user.
ULPower makes no warranty or representation on the suitability of its engine's use on any
particular aircraft. Furthermore, ULPower makes no warranty or representation of this engine's
suitability with any other part, component or system which may be selected by the aircraft
manufacturer, assembler or user for aircraft application.
Never (test) run the engine without a propeller or flywheel as this will inevitably cause engine
damage and present a hazard of explosion.
Propeller/flywheel and its attachment with a moment of inertia in excess of the specified value
must not be used and releases engine manufacturer from any liability.
Improper engine installation and use of unsuitable piping for fuel-, cooling- ,lubricating - , intake
and exhaust system releases engine manufacturer from any liability.
Unauthorized modifications of engine, its components, ECU, etc. will automatically exclude any
liability of the manufacturer for direct, indirect and/or consequential damage.
Spare parts must meet with the requirements defined by the engine manufacturer. This is only
warranted by use of genuine ULPower spare parts and/or accessories. They are available at the
authorized ULPower distribution- and service partners.
The use of anything other than genuine ULPower spare parts and/or accessories will render any
warranty relating to this engine null and void.
Respect all government or local rules pertaining to flight operation in your flying area. Fly only
when and where conditions, topography, and airspeeds are safe.
Select and use proper and calibrated aircraft instrumentation. This instrumentation is not
included with the basic ULPower engine.
Before flight, ensure that all engine controls are operational and engine is airworthy. Make sure
all controls can be reached in case of an emergency.
