K80-170 Manual
User acquires from Kingtech, or from one of KingTech’s authorized dealers, a
MINIATURE TURBOJET ENGINE for model aircraft, agrees to all of the following terms
and conditions:
User's Representations. User represents that he/she is very experienced in
model airplane operation, and that all of the information set forth in the
Purchase Application is true and correct. Kingtech relies on such
representations, and would not enter into this transaction but for these
User acknowledges the Risks and Dangers involved. User recognizes that
operation of the Model Engine may be dangerous, and that under certain
circumstances, its handling will be dangerous. As set forth in Paragraph 3
below, User accepts full responsibility for all of these risks and waives all
liability as against Kingtech.
(a) User's Acknowledgment of Danger. User expressly acknowledges that use of the
Model Engine is dangerous if improperly handled, and could inflict injury if attempts
are made to handle it properly, if the user does not fully acquaint himself/herself with
the Model Engine's operation procedures. The Model Engine may cause burns to the
user, or the user's assistant, particularly in the start-up procedure, and user agrees to
use extreme caution. The Model Engine exhaust is extremely hot, and will burn
someone or something placed directly behind the exhaust tube. Highly flammable
liquid is used to operate the Model Engine, and it or its fumes will ignite easily and
flare up rapidly. The Model Engine itself remains extremely hot, after it is shut off,
and requires a cooling down period. Improper use of the Model Engine, or failure to
follow Academy of Model Aeronautics ("AMA") guidelines and rules will result in injury
to the user, the user's assistant, or bystanders. Operation of the Model Engine in any
location other than an approved location, and under safe circumstances could lead to
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injury to bystanders. A risk exists from explosion, in the event of tampering,
modifications leading to over-speed or extreme metal fatigue.
(b) User's Obligation to Become Fully Acquainted With Operation Procedure. User
acknowledges receipt of operating instructions for the Model Engine which depicts its
handling and operation. User agrees to thoroughly acquaint himself/herself with
these materials, and to require his/her assistant to become equally familiar with
them. User expressly agrees not to allow any person to assist in the start-up
procedure of the Model Engine, who has not become thoroughly familiar with these
(c) Agreement to Use Qualified Assistant in Start-Up Procedure. User acknowledges
that the start-up procedure for the Model Engine cannot be safely done without an
assistant. User expressly agrees to use an assistant, who is thoroughly familiar with
the Model Engine and its operation as set forth above, on each occasion when the
Model Engine is starting up.
(d) Warning to Bystanders. User acknowledges that injury or burns to bystanders
could occur, during the start-up procedure or when operating the Model Engine. User
expressly agrees to take all steps necessary to assure that no bystander will be in a
position to receive injuries during the start-up procedure, or while the Model Engine is
3. Full Assumption of Liability; Waiver and Release of Kingtech. User assumes all
risk of injury, harm and damage, of every nature whatsoever, to himself/herself
and his/her property. User fully and completely waives and releases any and all
claims which he/she might have at any time arising out of the purchase, handling,
or operation of the Model Engine. This assumption, waiver and release is
complete, full, and comprehensive.
(a) Release Even If Kingtech Is Negligent. The waiver and release contained herein
releases Kingtech from all conduct, no matter how it could be characterized or
alleged. Kingtech shall not be liable based on any theory in strict liability in tort.
KingTech shall not be liable for any alleged breach of warranty, whether express or
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implied, of any nature whatsoever, whether a warranty of fitness for a particular use,
merchantability, or otherwise.
(b) Waiver Effective for All Time. The waiver and release contained herein is effective,
without regard to the passage of time. It is effective indefinitely. It will not be
changed by any modification to the Model Engine, to any later sale, or other changes
in circumstances.
(c) Release Extends to KingTech and All Its Associates. The waiver and release
contained herein protects KingTech, and all of its employees, officers, principals,
owners, importers, distributors, dealers, designers, and agents ("Associates").
No Modifications to Model Engine. User agrees to make no modifications of any
kind to the Model Engine. This Agreement pertains to the entire life of the
Model Engine.
Sale By User to Other Party. User agrees to fully inform any person to whom
he/she sells or transfers the Model Engine, concerning the handling, use, and
operation of the Model Engine, and agrees to give all operating instructions to
such person, at or before the time of sale or transfer. The indemnity and hold
harmless agreement contained in Paragraph 3 continues in effect, following
such sale or transfer.
Severability. In the event any clause, provision, or term of this Agreement is
held to be ineffective, void or otherwise unenforceable for any reason, that
clause, provision, or term shall be severed from this Agreement, and the
Agreement shall otherwise remain binding and effective. If any portion of
Paragraph 3 is found to be unenforceable, then the parties agree that the
fullest and most complete waiver and release, which is permitted by law, shall
be effective.
This Document Is the Full Expression of Parties' Agreement. This Agreement
contains the full and complete agreement of the parties. There is no
representation, term, or provision which is outside this Agreement. Any and
all discussions, oral agreements, and representations are merged into this
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single written Agreement. This Agreement cannot be modified or amended in
any way, except by written Amendment, signed by the parties.
No Interpretation of Agreement Against Either Party. User understands and
expressly acknowledges that he/she has the right to have an attorney read
and review this Agreement, before execution. This Agreement shall not be
interpreted against either party, but shall be interpreted as if it was drafted
mutually by the parties.
If the Buyer is not prepared to fully accept the PURCHASE AGREEMENT, FULL
advised to return this Model Engine immediately in new and unused condition
to the place of purchase.
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KingTech Lifetime* Limited Warranty
KingTech warrants that this MINIATURE TURBOJET ENGINE for model aircraft, cars or
boats (“Model Engine”) enclosed with this warranty statement is free from defects in
materials and workmanship during normal usage, according to the following terms
and conditions.
1. The limited warranty extends to the original purchaser ("Buyer") of the Model
Engine and is transferable with no fees during the first year of the original
purchase, after the first year, a re-registration fee of $150 is required to any
subsequent purchaser / end-user.
2. Warranty coverage begins the day you bought the turbine to the day you sold
or crashed turbine (which ever comes first), all parts except for batteries,
electric motors, glow plug, valves, ECU & HDT, pump and all frictional
materials/components including but not limited to that of the bearings will be
repaired or replaced free of charge. All parts, including repaired and replaced
parts are covered for the original warranty period. When the warranty on the
turbine expires, the warranty on all replaced and repaired parts also expires.
The ECU is warranted for 1 year of purchased.
3. Buyer must fully accept all conditions of the PURCHASE AGREEMENT, FULL
4. During the warranty period Kingtech will repair or replace, at KingTech’s
option, any defective parts with new or factory rebuilt replacement items if
such repair or replacement is needed because of Model Engine malfunction or
failure during normal usage. No charge will be made to the Buyer for any such
parts. KingTech will also pay for the labor charges incurred by KingTech in
repairing or replacing the defective parts. The limited warranty does not cover
defects in appearance. KingTech will not be liable for any other losses or
5. Upon request from KingTech, the Buyer must prove the date of the original
purchase of the Model Engine by a dated bill of sale or dated itemized receipt.
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6. Buyer must bear the cost of shipping the turbine to and from KingTech,
7. Buyer shall have no coverage or benefits under this lifetime warranty if any of
the following conditions are applicable
a) The Model Engine has been subject to abnormal use, abnormal conditions,
improper storage, unauthorized modifications, unauthorized repair, misuse, neglect,
abuse, accident, alteration, improper installation, fail to engage into proper cool down,
or other acts which are not the fault of KingTech, including damage caused by
b) The Model Engine has been damaged from external causes such as crash damage,
foreign object damage, weather, Act of God, improper electrical connections, or
connections to other products not recommend for interconnection by KingTech.
c) The Model Engine is operated for commercial or institutional use.
d) The Model Engine serial number has been removed, defaced or altered.
If a problem develops during the warranty period, the Buyer shall take the
following step-by-step procedure:
a) The Buyer shall ship the Model Engine prepaid and insured to KingTech, Taiwan.
b) The Buyer shall include a return address, daytime phone number and / or FAX
number, complete description of the problem and proof of purchase.
c) The Buyer will be billed for any parts or labor charges not covered by this warranty.
d) If the Model Engine is returned to KingTech during the warranty period, but the
problem with the Model Engine is not covered under the terms and conditions of this
warranty, the Buyer will be notified and given an estimate of the charges the Buyer
must pay to have the Model Engine repaired, with all shipping charges billed to the
Buyer. If the estimate is refused, the Model Engine will be returned freight collect. If
the Model Engine is returned to KingTech after the expiration of the warranty period,
Kingtech’s normal service policies shall apply and the Buyer will be responsible for all
shipping charges.
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9. The Model Engine consists of newly assembled equipment that may contain
used components that have been reprocessed to allow machine compliance
with Model Engine performance and reliability specifications.
10. KingTech shall not be liable for delay in rendering service under the limited
warranty, or loss of use during the period that the Model Engine is being
11. KingTech neither assumes nor authorizes any other person or entity to assume
for it any other obligation or liability beyond that is expressly provided for in
this limited warranty.
12. This is the entire warranty between KingTech and the Buyer, and supersedes
all prior and contemporaneous agreements or understandings, oral or written,
and all communications relating to the Model Engine, and no representation,
promise or condition not contained herein shall modify these terms.
13. If the Buyer is not prepared to fully accept the liability associated with the use
of this Model Engine, the Buyer is advised to return this Model Engine
immediately in new and unused condition to the place of purchase.
14. This lifetime warranty allocates the risk of failure of the Model Engine between
the Buyer and KingTech. The allocation is recognized by the Buyer and is
reflected in the purchase price of the Model Engine.
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INTRODUCTION............................................................................................... 9
SAFETY PRECAUTIONS.....................................................................................10
THE CHECKLIST..............................................................................................12
BEFORE RUNNING THE TURBINE.......................................................................12
AFTER STOPPING THE TURBINE........................................................................12
FUEL / FUEL CARE..........................................................................................12
FUEL SYSTEM................................................................................................13
HOPPER TANK................................................................................................14
PRIME THE PUMP AND SYSTEM........................................................................14
FUEL SYSTEM CONNECTION DIAGRAM..............................................................15
FUEL PUMP ADJUSTMENT.................................................................................15
STARTING GAS DIAGRAM.................................................................................16
GAS INSTALLATION / FILLING THE STARTING GAS TANK..................................17
MOUNTING THE TURBINE................................................................................18
CONNECTIONS AT THE TURBINE.......................................................................19
ECU Battery (not included)...........................................................................20
GLOW PLUG...................................................................................................21
SETTING UP THE ECU......................................................................................22
“LEARN R/C”. TEACH THE ECU TO THE R/C SYSTEM............................................24
THROTTLE CURVES / TEST FUNCTIONS..............................................................25
TURBINE STARTING / RUNNING........................................................................27
TURBINE STOPPING / COOL DOWN...................................................................28
RUN MENU ................................................................................................28
FADEC STATUS MESSAGES...............................................................................30
FADEC WARNINGS……......................................................................................31
PARTS LIST….................................................................................................35
CONTACT DETAILS ........................................................................................36
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Congratulations, you have just purchased a turbo-jet engine from KingTech Turbines,
with the highest standards and technologies in turbine design and manufacturing. We
will provide you with the best after-sales customer support and service to ensure you
with many years of enjoyment with this new turbine engine.
Obviously, model turbine aviation - despite all the apparent fun involved - is serious
business. All Kingtech turbine jet engines have been through an extensive period of
R&D and testing.
To begin, read this manual thoroughly. Develop an overall impression of the engine
and its operating procedures, measuring equipment and accessories.
Study the material step-by-step and ascertain how to install, operate and maintain
your turbine engine. If you are unsure about anything, re-read it again or contact us
Once you are accustomed to handling the Kingtech turbine, you will observe that it is
a very reliable engine. Some experienced operators have expressed their belief that
it handles better than many piston engines. However, always remember, this is a
REAL JET ENGINE, requiring knowledge, discipline and maintenance.
In order to learn more about the development of the model turbine engine and
understand its function, we highly recommend reading Gas Turbine Engines for
Model Aircraft by Kurt Schreckling and Model Jet Engines by Thomas Kamps. These
books are available through:
Traplet Publications
Traplet House
Severn Drive
Upton upon Severn, Worcestershire ISBN 0 9510589 1 6
United Kingdom WR8 0JL ISBN 0 9510589 9 1
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Safety Precautions
In front = 15 feet On the side = 25 feet Behind = 15 feet
Fire extinguishers should be on hand at all times. We recommend the CO2 variety.
To the avoid hearing damage, always use hearing protection when you are near a
running turbine engine!
When the turbine is running, never place your hands into the area of the intake. An
extreme suction - which can grasp a hand, fingers or other objects in a flash –
prevails in this area. Be aware of this source of danger, always!
Prevent foreign materials from entering the intake or exhaust when working with the
turbine. Before operation, make sure there are no lose parts or debris near the
turbine or within the fuselage. Objects being sucked in will cause severe damage.
Always exercise caution around the hot parts of the turbine, to avoid burns. The
outer case at the turbine stage and nozzle reaches 450-500° (Celsius), while the
exhaust gas may exceed 720 °C.
Assure that the fuel is mixed with approximately 5% synthetic oil. Use only synthetic
turbine oils available at local airport fuel suppliers.
Never run the turbine in a closed room, or an area near any kind of flammable
Do not fly turbine-powered aircraft near flammable materials, nor in forested tracts or
areas experiencing drought or dryness. Obey all forest fire regulations and warnings
by refraining from operating turbine in restricted fire zones. Never operate model
turbine jet aircraft in or around residential or heavily populated areas.
Installation of unauthorized parts from another manufacturing source may also result
in engine failure
A flying model with a turbine can reach higher flight speeds than ducted fan-powered
models, because the turbine’s thrust degrades less with higher flight speeds. With
attainable flight speeds of over 250 MPH, you can quickly run out if flying room.
There is also a danger of developing control surface flutter or mechanical overload,
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causing the model to fail in flight. When piloting a turbine powered aircraft, one must
properly control the throttle. Full power should be used for takeoff or vertical
maneuvers and a reduced setting for level or descending flight.
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The Checklist
Before Running the Turbine
Charge ECU Battery
Observe all safety precautions on Page 10
Prepare fire extinguisher
Check fuel lines and filter. Make sure they are clean with no restrictions
Check that the fuel tank vent is unobstructed
Fill fuel tank(s). Make sure the main and header tanks are full
Prime pump. Take good care not flooding turbine, (this is only necessary after
initial set up)
Be certain the starting gas release valve is closed, before filling the starting
gas tank
Turn on receiver switch
Place the model with nose into the wind
Activate brakes and now you ready to start.
After Stopping the Turbine
Turn model into the wind. Activate brakes and stop turbine
After the cooling process (approximately two minutes), turn off receiver switch
In the event that the turbine does not go into the cooling mode, please refer
to page 28 for manual activation.
After each flying session, open starting gas release valve, to empty the tank,
before storing the model. This should be executed in a safe and well ventilated
Fuel / Fuel Care
KingTech engines use 1-K kerosene or Jet-A1 for fuel. Fuel must be mixed with 5%
synthetic turbine oil, or 1 quart of oil in every 5 gallons of fuel. Other oil are currently
being studied and tested and maybe approved in the future, please check with us as it
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Fuel System
The input and output fuel tubing must be connected to the electronic shut-off valve as
per the diagram on page 16.
When installing the fuel lines on components with barbed connectors, slightly heat the
tubing and lubricate the barbes before connecting. This will soften the tube, making it
much easier to install. Double looping safety wire on all barbed connection is also
To remove tubing from barbed connectors, you must cut the tubing off. Be
careful not to damage the barbs when cutting off tubing. To insert tubing into Festo
quick release fittings, use firm pressure until you feel the tube snaps in then lightly
pull on the front ring and tubing to ensure a good seal. To release, press in on the
front ring, while slightly pushing the turning the tubing then pull the tubing out for a
clean release.
ALWAYS use a gasoline-compatible stopper. Silicon stoppers swell and leak.
Check your fuel filters every ten (10) flights. You may be surprised how rapidly they
can clog up! The filter is installed with the O-ring located toward the fuel pump.
Use caution not to pinch o-ring when assembling filters. We recommend to smear a
little oil on the O ring mounting the fuel filter vertically. This will provide a better seal
from the O ring and limit the possibility of air being trapped inside and then coming
out at an inopportune time. It is also better not to affix it but to leave it free to
slightly move.
When running the engine at full power, check the fuel line from the pump to the
engine. If there is a large quantity of air bubbles flowing with the fuel, there is
probably a restriction in the fuel system or an air leak in at least one of the many
Be careful not to over-pressurize the kerosene tanks and the kerosene shut off valve
during refueling operations. You might pump a bit of raw fuel past the valve and into
the turbine, and subsequently have a wet (hot!) start. We are now requiring a
manual shutoff valve downstream of the automatic kerosene shutoff valve, as an
additional precaution.
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Hopper Tank
A hopper tank is recommended, between the main fuel tank and the engine. Kingtech
highly recommends the BVM UAT or its equivalent for the hopper tank! Always use
the filter between the fuel pump and the solenoid valve as shown in the diagram.
This is true even when using the BVM UAT! The pump may emit small particles that
can block the solenoid valve from completely closing!
Prime the pump and system
To prime the fuel pump and fuel lines (or for fuel pump test purposes), it is necessary
to open the fuel shutoff valve and run the fuel pump manually. For this purpose, use
the Test Menu selection, Prime pump. This test opens the fuel valve and acts as a
speed control for running the pump. (page 26)
Extremely Important:
Pump Test allows the fuel pump to operate without the turbine running. However, if
the fuel feed line is not removed from the turbine during this procedure; it will
become flooded with fuel. When this occurs, the next turbine start can become highly
Before activating the pump test mode, ALWAYS remove the fuel feed line
connected to the turbine.
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Fuel System Connection Diagram
Fuel pump adjustment
Pump Start point: Sets the power of the pump when it is started at beginning of the
fuel ramp. The FADEC has the ability of to automatically adjust the pump power to
start it at the lowest possible speed, independently of the battery voltage and pump
AUTO mode: The values of “Pump start point” from 0 to 8 are in AUTO mode.
This means that the FADEC will adjust itself the pump power to start it slowly. The
value at default is AUTO+2, but after the first start you can increase or decrease the
fuel flow if needed. The idea is to have a smooth start, but make sure during ramp
up, temperature does not peak over 800C.
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Starting Gas Diagram
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Gas installation
Some modelers prefer onboard gas installation. When setup correctly no connections
to jet is needed when startup. If you will not use onboard gas, then you may skip
these steps. Keep the tubing length short from the one/way valve to the black nylon
starting gas probe. This will minimize the amount of excess gas released when the
probe is removed from the POWERMAX can.
The starting gas tank can be mounted vertically or slightly horizontally. Whether the
tank is mounted upright or slightly on its side, the nipple must always be towards the
top. This will limit the amount of liquid propane entering the turbine during startup.
After every flying session, open the release valve to empty the tank, before storing
the model.
Perform this procedure in a safe area.
The propane filter is installed just before the starting gas valve.
If you are using the engine in a bypass, and it produces a bang when the starting gas
ignites, or if it is too rich and not igniting immediately, you must limit the amount of
starting gas flowing to the turbine. This is accomplished by changing the Gas % to a
lower value. Start by lowering it in 10% increments until it smoothly ignites. This
should be adjusted with a full tank of gas each time. Watch the exhaust gas
temperature each time you make an adjustment. The turbine will over heat if the
amount of starting gas is too low. When a good adjustment is achieved, it should
work unless there is a broad change in outside temperature.
Filling starting gas
Only use a propane/butane mix for starting gas. We recommend Coleman
POWERMAX fuel (or a mix of propane butane 60/40%). Do not use 100% propane
from torch refill bottles. The pressure is too high and will cause the tubing to rupture.
To fill the tank, insert the starting gas fill probe into the valve on the POWERMAX
can. Make sure the can is vertical since it has a clunk at the bottom. Verify that the
fluid is flowing into the tubing. Continue filling, until the fluid slows. Just before the
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liquid stops flowing, remove the probe from the POWERMAX can. Several starts are
attainable with a full tank.
Do not over fill the on-board starting gas tank. When you notice the liquid flow into
the tank start to slow down, stop filling. You will prevent any tendency to "pop" on
start up, while still having enough gas for 6 to 8 auto starts from a 4oz. bottle.
Mounting the Turbine
A two-piece, aluminum mounting bracket is included with the turbine. Place the
bracket around the turbine, with the glow plug situated within the slot of the smaller
bracket piece. This will help stabilize the engine along the thrust axis. The glow plug
must be in the vertical position, when mounted in your model (+/- 75° of engine
rotation, from the glow plug at top dead center, is the allowable deviation). Secure
the engine, using four metric mounting screws and lock washers that are provided
with brackets.
Other Notes on Turbine Installation
When the turbine is mounted in models with the air intake at the bottom, for example
an F-16, care should be taken to prevent foreign object damage of the compressor
This can be accomplished by using a strainer screen at the inlet. The screen mesh
should be about 0.06 inches in width.
KingTech also offers a FOD screen as optional accessory and it is highly recommended
to protect your investment.
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Connections at the turbine
Notice the white dot side has only two polarities, which goes to the thermo port.
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ECU Battery (not included)
Power for all electrical components of the turbine (starter / glow plug / ECU / fuel
pump / fuel and gas valves) are supplied by 2 cell lipo 2000mah to 5000mah ECU
battery. The amount of battery capacity used per flight is approximately 300-350
mah. This includes starting and cool down. The ECU battery must be not be used
over 80% of its capacity, otherwise must be recharged.
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Charging the Battery - Do not charge the battery, with a quick charger using negative
discharge pulses, when connected to the ECU. This will destroy the electronics of the
ECU. The only recommended method is to disconnect the battery from the ECU and
charge it directly.
Also make it a routine to reset battery used to zero under Info menu by pressing the
“+” button after each full charge. This will cumulatively monitor mAh used, make
sure you stop flying and starting charging if it becomes near 80% of the capacity.
Glow Plug
A modified, (non-idle bar) glow plug OS no8, Rossi 9, McCoy 9, any of the colder plug
is appropriate. Hotter plugs maybe used, but adjustment from glow setting must be
made to achieve maximum longevity. The glow plug is installed on the turbine with
the washer. Do not over-tighten or you may damage the threaded bushing. Light
torque is fine; there is no vibration to loosen it. The glow plug is modified, so that at
least two turns of the element extend beyond the bottom of the plug. With a pin, pull
out two turns of the element. Make sure the plug glows brightly red. The limits menu
features an adjustment for glow plug voltage. If higher voltage plugs are used a
value of 2.6-2.7 V will be required. This adjustment is described later.
Description of the FADEC.
The FADEC (Full Authority Digital Engine Control) is a total system for the control of a
model gas turbine engine. Its main function is to control and regulate the fuel pump,
providing to the turbine engine the necessary amount of fuel for safe and controlled
operation, and to operate the ancillary devices for starting. The FADEC measures the
exhaust gas temperature, the relative position of the throttle stick and the rotor
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speed. It monitors all of the controls necessary to guarantee that the engine stays
between the user defined parameters of operation, also providing failsafe shutdown of
the engine when it has detected any important anomaly. In order to make this
assessment, the FADEC has a rpm sensor, a thermocouple input, a throttle servo
input, power connections for the fuel pump, starter, glow plug, fuel and gas valves
and the battery and a digital (RS232) serial port to program and read the data in realtime to a PC. The measurements made by the FADEC are:
• Temperature of the exhaust gas
• Battery voltage
• Battery current
• Width of the throttle pulses from the radio transmitter
• Engine rotor RPM
• Engine run time.
• External analog signal (airspeed sensor)
• RPM input: Magnetic sensor up to 250.000 R.P.M.
• Temperature range up to 1000ºC using a "K" type thermocouple
• PWM control of 8192 levels for pump, glow plug and starter motor.
• Adjustable power for the starter motor
• Build-in electronic brake for the starter motor to help the clutch to disengage.
• Blown glow-plug detector
• Adjustable glow-plug power
• Glow-plug temperature independent of the battery voltage
• Elapsed engine run timers
• RS232 or USB interface to PC, cable must be purchased separately.
• Black box function. Record the engine measures each 0.5sec up to 52 minutes.
• Radio link error counter
• Battery usage counter in mA/h, (reset this value on a freshly charged pack)
• Test functions for all connected devices.
Setting up the ECU
All the programming and measures are done through the HDT, Hand Data Terminal or
commonly known as GSU, Ground Support Unit. Once the FADEC is programmed, it is
no longer necessary and do not leave inside the airplane. The GSU has a 16
character LCD screen and 4 buttons. The first two buttons on the left side allow
moving through the menus, and the two buttons on the right side (+, -) allow
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changing the data. Main screen, as shown in the picture, give to the user that main
readings from the engine. These are the FADEC status, the EGT (temperature), RPM
and Fuel Pump pulse width (Pw)
In the case of an error, this screen changes to the error screen every 2 seconds.
Pressing the second button from the left (Menu Up) the second information screen is
shown. In the first line you have the measure of the pulse width received from your
RC system, and the relative stick position. Second line shows the voltage of the
battery and the software version. If the current drawn from the battery is higher than
0,5A, then the FADEC display the battery voltage and the battery current in Amperes.
Next menu lets you to choose in four submenus, selected by pressing the button
under of each Heading.
Start: To the parameters used on startup
Info: Information and test menus
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Radio: Programming the transmitter throttle and trim throws, and setting of throttle
Run: Set the parameters used during engine run.
It is recommended to program the learn RC first.
Learn R/C. Teach the ECU to the R/C System
Learn RC (throttle stick and trim travel) on Xicoy ECU just doesn’t get easier. First,
please set stick low and trim low on transmitter and power on transmitter, and
receiver. Power on ECU plug in GSU, scroll and select “Radio” then just follow
directions on the screen.
Once you have done all steps correctly the green LED located directly above the GSU
socket will light up in the ECU when the “Idle” command, (trim and throttle stick set
to idle positions on the transmitter). Lower your throttle trim and the green
LED will go out indicating correct reading of the transmitter engine shut off signal by
the FADEC. On rare occasions, usually when using a Futaba transmitter, it has been
found that the throttle channel sense of movement may require reversing (Servo
reverse) and repeat the transmitter alignment, where JR 12X requires to be at
Correct reading of throttle % by the FADEC can be verified in the second screen,
percentage of the throttle position is shown on, 0% in the position of engine stop
(trim and stick down), 100% with stick/trim full up and between 10% and 30% at
This now completes your radio setup and should only need doing again if the radio
settings in the TX are changed or a different Radio is being used.
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On your first start after RC learned: Be patient until ECU stabilizes idling RPM, this
may take up to 1 minute or so, subsequently hold on tight to your airplane and apply
full throttle, and again let the ECU to stabilize its peak RPM, then back down to idle to
verify, do this a few times and you are ready to go.
Throttle curves
By default the FADEC controls the RPM in linear way, i.e. at half stick position the
engine turn at half of the rotor RPM range. Jet engines develop the thrust
exponentially, thus half RPM means approximately ¼ of thrust. On small engines
with a high idle to full power rpm ratio, or in a high drag/low power planes, often only
the last 1/3 of the throttle stick produce significant thrust, with the low half stick
travel being not used. Although that with current digital TX the pilot can modify the
throttle curve to suit his needs, from Xicoy Fadec ECU version 5.48 three throttle
curves have been added to simplify the setup for most of the installations:
FULL EXPO: Mean linear RPM, it is the default setting and the mode used for all
previous software versions. Thrust develops exponentially, and it is the
recommended curve for big engines or/and high thrust/weight ratio planes, as it ease
the control in low power used during taxi.
LINEAR: Mean that the thrust develop linearly with the throttle setting, has more
resolution at lower half of the throttle stick. This is the preferred factory setting.
HALF EXPO: An intermediate setting between the previous two modes.
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Test functions
The FADEC provides testing functions to the starter motor, glow plug, pump and both
solenoid valves. These test screens are only available when the FADEC is on “Trim
Low” status, that is to say, recently powered up and receiving a STOP signal from the
TX. Pressing the (-) button (under the “ON” reading on the screen) will energize the
selected device and pressing (+) will shut down. Special care should be taken when
testing the pump, as it is possible that fuel can be pumped into the engine, flooding it,
and causing a hot start on next startup.
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Turbine starting and running
Always set-up and confirm the operation of your Auto-start installation on the teststand, before installing into your model.
The present version of auto start uses only one channel for the entire engine
functions: To trigger the auto start cycle, the process is as follows:
• The user raises the trim. "Ready" will appear on the GSU screen. The trim and stick
should be where the engine is supposedly to be to idle once running. If the trim is on
"stop" position, "Trim low" will be read on the GSU.
If higher than idle, "StickLo!" will be read.
• When "Ready" is displayed, the user should cycle the stick to full power and back to
• When the stick is at idle again, the start sequence begins.
• The glow-plug is powered and checked. Once hot, the starter is engaged at reduced
power (soft start) and the gas valve is energized. If the glow test fail, a "Glow Bad"
message is displayed, and if the starter fails to arrive a minimum RPM in 2 seconds, a
“start bad” message is issued, and the auto start function aborted.
• When the rotor arrives at more than the "ignition max rpm" programmed parameter
(default 4000 for K-80E), the starter is disconnected and the brake applied.
• When the rotor RPM fall below than the "ignition min. Rpm" parameter (default
2000), the starter is switched on again to raise the rotor speed to the "ignition max
rpm" and the cycle is repeated until the gas ignites or the system times out after 30s.
• When the thermocouple register a increase of 50ºC in temperature meaning that the
ignition have occurred, the starter is switched on immediately at reduced power,
increasing his power accordingly to the real rotor rpm. At the same time the pump is
switched on at “pump start point” power, and the fuel valve is opened.
• The engine begins to accelerate as soon as fuel begin to burn, and power of the
pump is being increased through the time at "fuel ramp" slope. Once rotor RPM
arrives to the RPM set in “rpm switch off gas” parameter (usually set at 3/4 of the
“starter off RPM”) the gas valve is closed, and when the RPM arrive at the predefined
"starter off RPM" value, the starter is switched off and the brake applied to it. The
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engine continues to accelerate until idle RPM is reached. Now, the command of the
turbine will be taken over by the transmitter.
Turbine stopping and cooling
• The user can finish the sequence at any moment, simply setting the trim to "off"
position. If the engine was on "running" phase (above idle rpm), a cooling sequence
will be triggered, cycling the starter motor until the EGT is below the minimum
programmed temperature. This cooling sequence will be aborted if the trim is raised
• If the engine is hot (EGT higher than the minimum temperature) at the moment
that the user triggers the auto start cycle, then the FADEC will begin a cooling cycle
until the temperature is below 100C.
Manual cool down:
In the event if the engine does go into the cool down mode after the turbine shuts
down or flames-out, the user can lower the trim, and advance throttle stick to trigger
cooling from starter. Make sure you simulate the auto cooling sequence and monitor
the real time temperature and do not leave motor running to longer than a couple of
Another option is to unplug reconnect power to ECU, this power cycle will enable ECU
to recognize that the engine temperature is still higher than normal, and should
engage auto cool down.
RUN menus
Under this submenu, the parameters used for the engine during normal run can be
modified. Note: Some of these menus parameters cannot be changed by user. It
was factory set for best operation and to protect turbine. Please do not change
these values set by factory. This may void your warranty!
Full power speed: On this screen you can set the RPM that the engine will run at
100% throttle. If the engine manufacturer has set a maximum limit, you will only be
able to reduce the max RPM, (145,000 for the K-80 and 125,000 for the K-170)
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Idle speed: Set the RPM that the engine will run when the FADEC receive IDLE
Command. While the engine is running, the FADEC will adjust the rotor speed
accordingly the throttle position in a closed loop system. (45,000 for the K-80 and
36,000 for the K-170)
STOP speed: Set the minimum RPM that the engine is allowed to run. The FADEC will
shut down the engine if the rotor speed is below this setting. (30,000 for the K-80)
Start/Min temperature: Set the minimum temperature that the engine is allowed to
run, and in manual start operation, sets the temperature from which the pump begin
to run. 100 DEG C
Maximum temperature: Set the maximum temperature that the engine is allowed
to run. The FADEC will reduce the acceleration rate if the EGT approaches to
maximum and will reduce the pump power if necessary to keep the temperature
below the maximum, but it don’t will cut the engine if the temperature is too high, it
will try always to keep the engine running by reducing the fuel flow . 850 DEG C
Acceleration delay: Set the acceleration time on the engine. Higher values, longer
acceleration times. The real acceleration time is calculated using a complex algorithm
that take in to account this value, temperature, current RPM, commanded RPM, and
the tendency of EGT and RPM.
Deceleration delay: Similar to the acceleration, but used during throttle down.
Higher values mean slower deceleration.
Stability delay: When the engine is running at constant throttle setting, the FADEC
is adjusting continuously the pump power so that the rotor RPM mach exactly with the
throttle signal. The speed of witch the fadec adjust the pump power is set by this
parameter. A value of 100 usually is the best for all engines. A too low of a value
can cause instability on the RPM.
Pump Limit: The Fadec can give to the pump the full battery voltage, but in most
cases the voltage needed for the pump is only a fraction of the full battery voltage.
Limiting the pump give a much smoother control of the engine and prevents that the
pump could receive excessive voltage in the case of a problem in the fuel circuit, a
clogged filter for example. This excessive power will cause a high pressure on the
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circuit that can cause leaks or blown tubes. Modifying this parameter is similar to
reducing the battery voltage, so the accel and decal times will be modified. The most
ideal is to have the limit set at the lowest and still be able to reach full max RPM, run
the engine, check and annotate the Pw of the pump displayed on the first screen
when the engine is running at full power and then use this value as pump limit,
increasing it in a 15%-20% to give a bit of margin for weak batteries and pump wear.
Once the new value set, adjust the accel and decel delays for best engine handling.
List of FADEC STATUS message codes
Here is a list of possible messages shown on the data terminal screen and their
TrimLow: Indicates that the signal received from the transmitter corresponds to the
lowered trim, that is to say, engine OFF.
Ready: Indicates that the engine is ready for starting, and that the transmitter signal
corresponds to IDLE, (green LED lit)
StickLo!: This indicates that the throttle stick is in the IDLE position, the engine will
not start with the stick in this position.
Glow Test: Verifying of glow plug
StartOn: Test of the starter
Ignition: Gas ignition phase.
Preheat: Phase of heating of the combustion chamber after detecting gas ignition.
FuelRamp: Phase of fuel acceleration until IDLE IS reached.
Running: Engine working correctly, pilot have full control of engine power.
Stop: Engine off.
Cooling: Starter operating to cool the engine.
GlowBad: Defective or disconnected glow plug, or a short of glow system wiring.
StartBad: Defective starter, insufficient RPM reached during start.
Low RPM: Engine speed below the minimum.
HighTemp: Excessive temperature
FlameOut: Exhaust GAS Temperature below the minimum.
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List of FADEC Warning message codes:
RC SIGNAL LOST/INCORRECT: The signal received from the RX is wrong (outside
calibration margin) or absent.
PUMP LIMIT REACHED: The FADEC has increased the pump power up to the value
set on the “Pump Limit” parameter, but the engine has not arrived to the full power.
Causes could be flat battery, fuel restriction or anything that can cause a reduction in
the fuel flow.
xxxx OVERLOAD: An excessive current is detected from the specified output.
During engine operation the FADEC measures and stores all the engine operating
parameters recorded during the last the 51 minutes of operation. These measures
can be downloaded later to a PC to study the behavior of the engine in flight and to
diagnose any possible problems. Also, after each cycle of operation, the FADEC
stores the last cause of shut down and the values of RPM, temperature and pump
power at the moment of shutdown. In order to access these measures, it is
necessary to reinitialize the FADEC (shut down and powerup).
Set the trim down (TrimLow) and push the left button on the display. The FADEC will
show the cause of shutdown and the measured values at the moment of shut down.
These are as follows:
Diagnosis messages:
UserOff: The engine has been shut down because it has received the shut down
command from the transmitter.
FailSafe: The engine has been shut down because of loss of signal from the
transmitter. Once Ecu detects a loss or invalid RC signal for over 0.5 second, it sets
engine power to idle, and if after another 1.5 seconds a valid signal is still not
received the engine is shut down.
LowRPM: The engine has been shut down because the RPM has dropped below a
minimum. Cause could be lack of fuel, air bubbles, problem with the batteries, or
defective RPM sensor.
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FlameOut: The engine has been shutdown because the temperature has dropped
below the minimum of (100ºC). (Usually a thermocouple failure).
RCPwFail: Lack of power from the radio receiver.
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K-80E Specifications:
Diameter: 3-3/4" (95.25mm)
Length: 10" (254mm) - including starter
Weight: 2 lb. 14oz. (1304 g) - including starter
Maximum RPM: 145000
Thrust: 19 lb. @ 70° F. (8618 g @ 21.1° C.)
Idle: 45000rpm
Exhaust temperature: 1202° F (650° C) max
Fuel consumption: 8.46 oz / min (239 g / min)
Maintenance cycle: 25 hr
Oil: 5% Turbine oil
Maintenance cycle: 25 hr USD300
K-140 Specifications:
Diameter: 4-1/2" (113mm)XJ0
Length: 10-1/2” (270mm) - including starter
Weight: 3lb. 10oz. (1650 g)
RPM Range: 33,000 - 123,000 RPM
Thrust: 31 lbs @ 59° F.(14 kg - 15° C)
Exhaust gas temp.: 1292° F (700°C)
Fuel consumption: 14.1 oz / min (400g / min—average)
Maintenance cycle: 25 hours
Lubrication: 5%
Fuel: Jet A1, 1-K kerosene, Diesel
Maintenance cycle price: 25 hr USD300
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K-170E Specifications:
Diameter: 4-1/2" (114mm)
Weight: 3 lb. 10oz. (1644g)
RPM Range: 33,000 - 123,000 RPM
Thrust: 37 lbs @ 123,000 RPM (16.78 kg @ 123,000 RPM)
Exhaust gas temp.: 968° F - 1148° F (520° C-620° C)
Fuel consumption: 18.5 oz / min (524g / min)
Maintenance interval: 25 hours
Lubrication: 5%
Fuel: Jet A1, 1-K kerosene, Diesel
Maintenance cycle includes:
• Turbine dismantle
Replace of bearings and other friction parts determined by technical staff
• Balance correction
Cleaning of injectors and chamber
• Turbine assemble
• Test adjust
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Parts list
Engine control system(ECU)
Engine control screen(HDT)
Wiring harness
JR TYPE male to male, throttle
Fuel Pump
Electromagnetic valve -2pcs
Engine mounting clamp
Fuel Filter
4mm line
3-4mm and 4-4mm Quick connector
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Kingtech Turbine Co.,Ltd.
Office: No.171, Jiouda Rd., Dashu
Township, Kaohsiung County 840
E mail:kingtech5512@gmail.com
Tel: 8867-6523533
Fax: 8867-6524262
Service: 886-937337983
KingTech USA Int’l
289 S. Santa Anita Ave.
Pasadena, CA 91107
Email: kingtechturbines@gmail.com
Tel: 1-626-793-4677
Fax: 1-253-793-4567
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KingTech Turbines "F" series, Kero Start operating guide:
1. Please install the engine on a simple stand to familiarize the components and
starting sequence
2. For ECU battery pack, please use 2S 7.4V Lipo at least 4000 mAh and 15C
3. When Learning RC, please disconnect ECU battery to avoid a false start
4. A fully charged 2S lipo pack has a voltage of 8.4V, please be prepared to
charge the battery when its residual voltage drops down to 7.8V to avoid
damage to the battery and failed start. If the combustion chamber of the
engine is not properly cooled after a fail start, a wet start may or may not
occur on the subsequent attempt, please refer to below to avoid a wet start.
5. If and when your engine fails to start, there may still be residual flame and
fuel remain in the combustion chamber, please do the following to avoid a wet
a. Stick Low, Trim Low
b. Move Stick forward to activate rotor to further cooling the chamber.
wait at least 5 minutes before resuming
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