User Manual X45 Version 1.0/2019
Copyright © 2019 by Xicoy Electrònica S.L. All rights reserved Page 7
to clear the engine is to tip it forward and allow excess to escape through the front of the engine. Mop up with a rag.
Tipping it backwards will not work as the internal construction of the engine prevents any liquid draining out to the
rear.
Notes
This engine is a real gas turbine machine with very high rotational speeds and high temperature fast moving exhaust
gases. Despite the small intake the engine is able to swallow a huge amount of air, and anything else that air can carry
with it. So before running please carefully check the area surrounding the front and back end of the engine for any
loose materials like rags, sawdust, sand or grit, modelling materials, liquids, or anything else that can be picked up by
the airstream and sucked into the engine, or blown out at speed by the exhaust.
If you are new to turbines or returning after some years it is a good idea to set up the engine on a simple test stand so
you can get familiar with its operation before installing it into a model. Use a maximum thrust setting that is
appropriate for your model especially on 1st flights. The RUN menu shows this clearly, see “derating”. A power/weight
ratio of 1:1 sounds great but can accelerate a model dangerously quickly and can lead to control or structural failure
of the model. If you have recent jet engine experience you should be able to install the engine straight into your
model but take careful note of the quick response in start-up and throttling. Every engine is carefully test run at the
factory to ensure it performs properly, so you can take confidence to know it is fully operational at time of despatch.
Being an internal combustion engine the engine will consume oxygen during running so must never be run inside or
in a confined space. The engine consumes a volume of air about 93ltrs/3.3cu ft every SECOND (ie, a dustbin full) so
can quickly use up a lot of air in a limited space, so only run outside in open air. Never try to slow the engine by
placing any kind of restriction on the intake or the exhaust or on the model. The suction is more powerful than any
vacuum cleaner and can do severe damage to anything passing into the intake. It can also collapse an airframe where
insufficient area for the intake air is provided, or is restricted in some way. The small fod screen supplied is intended
to prevent small articles being drawn into the engine like blades of grass, small stones etc. It cannot prevent a rag or
similar being accidentally jammed against the front of the engine by the suction, so please take great care. Never test
the suction with fingers or hand, these engines bite hard.
The engine exhaust exit is very small but with such a large volume of gas passing through it at pressure it makes a
loud penetrating noise. At a distance this noise is most pleasing but in close proximity (within 5mtrs/16ft) the noise
level can be very hazardous to hearing so always ensure you and any nearby helpers have proper ear defenders and
are wearing them while test running the engine. Ensure you check carefully the area where you plan to run the engine
and have someone keep lookout for inquisitive bystanders who could approach to see the source of the noise, as you
will be concentrating on the engine. Agree a system of hand signals in advance so they know what you are planning to
do and can warn you of any issue during the run, ie shut down in a hurry or reduce to idle if someone (or an animal) is
approaching, walking by, etc.
The engine has its own internal starting system and does not require any assistance or priming to operate. So please
do not try to assist it to start quicker or easier by administering any flammable agents, sprays or similar, into the
engine in the belief it will start better. It won´t, but it could result in causing a dangerous flashback or fire to start
which could rapidly get out of control and putting yourself in danger or more surely the destruction of your model.
The engine does not need priming like a petrol or glow engine to start, so when filling the fuel line for the first time
