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Welcome!

Congratulations on the purchase of your new Jets Munt gas turbine engine. Jets Munt are
dedicated to the design and production of engines to the highest standards of quality and
reliability to bring you the customer the very latest next generation engine designs. The
MERLIN “XBL” and ”TS” models are the result of an intensive effort of design and tests by the
Jets-Munt staff. During the development period we made extensive use of the latest
Computational Flow Dynamics programs allowing us to optimize the engine performance
characteristics, and use the latest technology in electronics.

PLEASE READ!

The Jets Munt SL responsibility is limited exclusively to the repair of the engine and
accessories which are outlined in the conditions of warranty. Before unpacking the engine,
please read the manual, and agree to the conditions of warranty.

Customer satisfaction is important to Jets Munt SL. Technical support is available trough your
local dealer and trough email.

Jets Munt S.L

Torrent d’en Puig 31
08358 Arenys de Munt
Barcelona. Spain
Web site:

www.jets-munt.com

E-mail:

[email protected]

Fax: +34 93 7950113

Legal and Disclaimer

The engine design and the contents of this manual are copyright by Jets Munt SL, Arenys de
Munt, Barcelona, Spain. All rights reserved. This manual, the pictures and data are property of
Jets-Munt and cannot be used or reproduced in any way without written permission from Jets
Munt SL.

Disclaimer

The MERLIN SERIES engines are a sophisticated piece of machinery. Care should be taken at all
times when using the engine. It should only be operated by those with the appropriate skills
and knowledge to do so. This engine is not a toy. Incorrect operation or misuse can cause
damage to property and bodily harm operators, spectators and animals. Jets Munt SL accepts
no liability for any kind of damage which may occur. Jets Munt SL assumes no responsibility for
any errors contained in this document and is not liable for any damages resulting from such
errors.

It is forbidden the use of this engine outside Radio Control applications, especially those that
power vehicles that carry people.

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Summary of Contents for Merlin M122NG

Page 1: ...Manual Version 1 5 2021 Torrent d en Puig 31 08358 Arenys de Munt BARCELONA Spain Tel Fax 34 93 7950113 www jets munt com E mail sales info jets munt com service service jets munt com Copyright 2018 J...

Page 2: ...ough email Jets Munt S L Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain Web site www jets munt com E mail service jets munt com Fax 34 93 7950113 Legal and Disclaimer The engine design and...

Page 3: ...m supplied ecu pump etc You will breach your warranty agreement and you will find it is a precision assembly which you will be unlikely to re assemble without considerable difficulty and specialist eq...

Page 4: ...e Ensure you have no loose items of clothing ties etc or equipment which can readily be sucked into the engine intake even from adjacent to the engine 4 Always operate your engine in open air away fro...

Page 5: ...nal thrust 15C and sea level 98N 12 2kg Max RPM 151 000 152 000 Idle RPM 41 000 40 000 Idle thrust 4N 4N EGT max rpm 650 700 C 650 700 C Fuel consumption 272g min 340g min Minimum exhaust pipe diamete...

Page 6: ...nted as near to the centre of gravity CofG of the model as possible This will minimize the CofG shift as the fuel is used during flight 5 Any air ducting to the inlet of the engine must have sufficien...

Page 7: ...ding all engine parameters can be saved later to a memory card where it can be read using a text editor or our viewer software Also this data can be sent to engine manufacturer to be studied A detaile...

Page 8: ...the ecu as shown The fuel pump is a delicate element dropping it on the floor can damage it always handle with care Never disassemble the fuel pump warranty from pump manufacturer will become void It...

Page 9: ...dio manual for this before you start Avoid using the digital trim if possible Aligning transmitter with ecu As the display does not photograph well we have reproduced the display readings as a green b...

Page 10: ...tion or switch Engine Cut switch to off and again press the button to store the Idle position into the ecu If you have done all steps correctly the blue LED in the ecu will light up flashing 2 times i...

Page 11: ...ur radio to a 125 If all is correctly adjusted the ecu will stop the engine immediately when receive the STOP signal 100 but if the signal received is Failsafe 125 the ecu will set Idle power during 2...

Page 12: ...ecurity measure is to place a manual valve between the last fuel tank and the pump intake line to prevent that during the process of filling the tanks or during storage some fuel can arrive to the eng...

Page 13: ...flaming during start sequence Priming is achieved by a special menu on the ecu Set the trim to low and go to Info menus and next to Pump test Click on on off to start stop the pump manually Please obs...

Page 14: ...RPM The engine is running Control of engine power rpm is now handed back to the transmitter and controlled by the position of the throttle stick Increase decrease the throttle slowly verifying that t...

Page 15: ...gher altitude will reduce the power output Autorestart function All JetsMunt engines in production include the AUTORESTART function This function can quickly restart an engine automatically in Flight...

Page 16: ...function where the ignitor is energized to full voltage and the pump is started at a power dependent of the current engine status RPM and EGT Once the ecu detects that the combustion has reassumed th...

Page 17: ...possible 5 Once the plane is on the ground even in normal landing or crash landing set the transmitter in the STOP position The engine could restart and go to full power on its own the ecu does not k...

Page 18: ...e Acceleration and deceleration settings Under the RUN menus is possible to change the acceleration and deceleration times The engine is supplied and tested from factory ready to use and usually these...

Page 19: ...using the engine at 80 of its maximum power in these conditions or using the 100 for takeoff but later reducing to 80 during continuous climb We don t recommend using our engines in 3D planes doing fa...

Page 20: ...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 Ecu stor...

Page 21: ...The fuel filter provided should be installed in an accessible place for regular inspection close to the intake port of the pump Fuel and Oil 1 Use CLEAN well filtered Jet A1 or kerosene fuel which is...

Page 22: ...tube and submerge it in kerosene for a few days and verify that its characteristics have not changed Maintenance 1 Always keep the engine and its accessories clean and dry 2 Regularly check wires for...

Page 23: ...he life of the element Do not change the voltage please contact to Jets Munt first Adjust the pump power at startup The fuel flow during ignition phase must be finely tuned for each engine pump combin...

Page 24: ...Smart data terminal 24...

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