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Jet Central Rabbit KS 100 SE Series Operation And Maintenance Manual

Miniature turbojet engine for model aircraft
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SE series
Revision 0.2, February 2016

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Summary of Contents for Jet Central Rabbit KS 100 SE Series

  • Page 1 SE series Revision 0.2, February 2016...

  • Page 2: Introduction

    JET CENTRAL, an ISO 9000 Company is a full production engine manufacturer, producing high quality parts to be assembled into the newest line of micro turbines.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ............................1 SPECIFICATIONS............................. 1 1 Purchase Agreement, Full Assumption of Liability and Indemnity Agreement ..4 2 Safety Information ..........................6 2.1 Safety Rules ..................................7 3 Turbine System Components Description ................8 3.1 Parts List ...................................8 3.2 Turbine ....................................9 3.3 Fuel / Oil System ................................9 3.4 Kero Start System ................................9...
  • Page 4 11.1 S-Bus Pitot speed sensor ............................33 11.2 S-Bus Turboprop RPM sensor ..........................33 11.3 S-Bus Telemetry adaptor ............................33 12 Jet Central BB Software ....................... 33 12.1 Introduction ................................33 12.2 Using the application .............................. 34 12.3 Dynamic Graphics ..............................35 13 Turbine Quick Start Guide ......................

  • Page 5: Purchase Agreement, Full Assumption Of Liability And Indemnity Agreement

    (a) Release Even If Jet Central Is Negligent. The waiver and release contained herein releases Jet Central from all conduct, no matter how it could be characterized or alleged. Jet Central shall not be liable for its own negligence, whether active, passive, primary, or secondary. Jet Central shall not be liable for...
  • Page 6 Jet Central shall not be liable for any alleged breach of warranty, whether express or implied, of any nature whatsoever, whether a warranty of fitness for a particular use, merchantability, or otherwise.

  • Page 7: Safety Information

    JET CENTRAL engine. The JET CENTRAL gas turbine engine is a very safe, easy to operate unit. The JET CENTRAL turbine is a state of the art gas turbine engine and all components are manufactured within the highest standards. If operated and maintained correctly it will provide years of reliable, trouble-free service, with low maintenance.

  • Page 8: Safety Rules

    As a last resort; if a dry powder extinguisher is used and the powder is ingested into the engine then the Turbine must be returned to the Jet Central service department.

  • Page 9: Turbine System Components Description

    Before starting installation of the engine please check the contents against the parts list. If any part is missing or damaged please contact JET CENTRAL or their agent in your country for correction. DO NOT substitute missing or damaged parts as this will void your warranty and your country controlling body approval for use.

  • Page 10: Turbine

    3.3 Fuel / Oil System The fuel supply for all Jet Central Turbines requires that the user to pre mixed fuel and oil together. Internal lubrication is achieved by routing fuel oil mix to an internal T-fitting which routes a portion of the Fuel/Oil mix to the bearings and the rest is sent to the fuel nozzles located in the combustion chamber.

  • Page 11: Hand Data Terminal (Hdt)

    3.5 Hand Data Terminal (HDT) The HDT is a rugged, slim, compact user interface and features a 2.4” portrait mode LCD TFT color graphical display which can be easily viewed even under the most demanding lighting situations. The HDT allows for a completely new level of turbine control system monitoring, it utilizes S-Bus communications and is simple to operate.

  • Page 12: Se Powerpack / Ecu

    3.6 SE POWERPACK / ECU 3.6.1 Overview The SE POWERPACK and ECU included with this Turbine engine is the next generation of integrated intelligent turbine management systems and features S-Bus communications that allows simple installation by using only one cable connection and two fuel line connections from the POWERPACK to the Turbine.

  • Page 13: Other Functions

    SD slot on the POWERPACK. Black box data may also be viewed utilizing the PC program titled “Jet Central BB” that is downloaded from the USB stick that was included with the turbine, the program will execute from your PC, see section 12 for details.

  • Page 14: Turbine System

    4 Turbine System...

  • Page 15: Connections To Se Powerpack / Ecu

    4.1 Connections to SE POWERPACK / ECU  Throttle input from the receiver: JR type servo cable  Deans Style Battery input  S-BUS Multiplex connector  S-Bus Hand Data Terminal / S-Bus Telemetry Interface / Sensor Interface  6 mm Fuel line inlet ...

  • Page 16: System Batteries

    (LiFePo), and lastly always verify the cell count programmed into the charger before charging. Do not exceed a 2C (i.e. 2 x 3800 mAh) charge rate during charging. Jet Central supplies and recommend 9.9v 3s LiFePo batteries, however 11.1v 3s LiPo may be used. 4.3 Receiver battery Recommended Receiver voltage range: 5 VDC to 10 VDC IMPORTANT! It is recommended to use 6 VDC or higher voltage supply to power the receiver / ECU;...

  • Page 17: Fuel System Connections

    4.6 Mounting Turbine and POWERPACK All Jet Central Turbines are supplied with pre-installed stainless steel mounting brackets; see Annex C for mounting dimensions. It is recommended to mount the turbine with the engraved name facing up. Make sure to use sufficient sized mounting hardware to secure the turbine to the turbine mounts. The distance from the tail cone to the thrust tube bell mouth should be set as per the diagram in Appendix B.

  • Page 18: Programming The Se Powerpack / Ecu

    5 Programming the SE POWERPACK / ECU The HDT has a color LCD and five buttons which allow you to move through the various menus and to change the data settings in each menu page. The presentation of data has been organized in screens. The first screen displays the engine status readings in real time and the following screen allows the user to modify the operating parameters.

  • Page 19: Menu Screen

    5.3 Menu Screen By pressing the escape button the menu screen will be displayed. To access each menu, simply move the cursor (black bar) with the arrow buttons to underline the menu and push the “OK” button. All the parameters in the submenus are factory pre adjusted and are a good starting point to fine tune your engine.

  • Page 20: Running Parameters Sub-Menu

    Increasing the values will increase the amount of fuel delivered during the staring sequence, so if in any of the stages you see excessive flames, reduce the corresponding value. An “Initial Pump Pw” value that is too low will probably allow ignition of the fuel but it will not be enough to raise the temperature to sequence to the preheat mode.

  • Page 21: Air Speed Limit / Turboprop Rpm Limit

    5.5.1 Air Speed Limit / Turboprop RPM Limit The lower part of the Running Screen normally displays a speed limit setting which is programed by the user; these settings will only be active when the optional Pitot sensor is connected to the S-Bus port. The lowest display line will indicate the maximum speed achieved during the flight, this can be reset by highlighting the “R”...

  • Page 22: Throttle Curves

    Note: The transmitter must not have any reduction of throw, trim, slow movement, center value, or the linearity modified. Note: For FUTABA systems you must reverse the throttle channel, Jeti and JR systems require non-reversed settings, other systems will require verification using the graphical display in the Radio Menu.

  • Page 23: Types Of Throttle Curves

    “TOTAL TIME” is the running time since turbine fabrication “SERVICE TIME” ” is the running time since last service; this time is reset to zero whenever the Turbine is returned to the authorized Jet Central service facility for the 25 hour service procedure.

  • Page 24: Battery Menu

    5.8 Battery Menu The top portion of the battery menu display indicates the RX Battery Voltage, ECU Battery Voltage and the current (in Amps) being consumed from the ECU battery. In the center of the display menu there are two settable parameters, “Battery Capacity”...

  • Page 25: Info Alarms

    “Void_Waran” is displayed when 28 hours of running time has elapsed without service; the Jet Central warranty is void at this point. 5.9.3 Turbine Status Messages In the main screen you can see the status messages displayed in...

  • Page 26: Turbine Alarm Messages

    5.9.4 Turbine Alarm Messages Turbine Alarm messages appear as Text on the bottom of the display. Ignition error Temperature failed to increase by 8°C during ignition sequence. Preheat error Temperature failed to increase over 80°C during preheat. Switchover error An abnormal drop of RPM or temperature during switch over phase. Starter motor error No rpm reading when starter is engaged.

  • Page 27: World Menu

    To remove the micro SD card from the POWERPACK, push in and release, and it will eject. See section 12 for details about the operation of the PC program Jet Central BB to view the recorded flights. Insert your micro SD card into an appropriate reader connected to your PC to read the files that...

  • Page 28: Test Menu

    6.2 Important notes The kerostart system used on all Jet Central turbines is reliable and well tested system that produces very smooth and trouble free starts. However, extra care and attention must be paid when starting a kerostart turbine.

  • Page 29: Priming

    To help minimize the chance of a hot start the following should be performed:  During the start-up, listen to the turbine sound to check for positive sound of ignition, verify by looking into the exhaust to verify that the fuel is burning, or check for an increase in EGT temperature by observing the display on the HDT.

  • Page 30: First Engine Runs

    6.4 First engine runs  Confirm your test stand is securely fixed to a bench or heavy table. Secure your ear protection and keep a CO fire extinguisher handy. THIS IS VERY IMPORTANT ON KEROSTART ENGINES.  Fill the fuel tank. Do not forget to filter the fuel, and to mix the oil. ...

  • Page 31: Engine Shut Down Procedure

    7.2 Recommend Oil Jet Central recommends using 2 stroke 100% synthetic oil mixed in 1.5% (66-1) to 2% (50-1) ratios. Any recognized brand that meets the norm “JASO FC” will work. Another alternative is 100% synthetic turbine oil mixed in ratios from 2.5% (40-1) to 5% (20-1);...

  • Page 32: Fuel Filter

    7.4 Header Tank Jet Central recommends a header tank with some type of bubble eliminator or an Orbit clunk. This is a requirement if you want to take every possible measure to insure against flame outs.

  • Page 33: Troubleshooting

    10 Troubleshooting PROBLEM CAUSE SOLUTION When raising the throttle ECU in stop mode after running. Power cycle the Receiver by trim of the radio, the “Trim switching off and then on. Incorrect adjustment of radio Up” message does not transmitter. Program the parameters of the appear radio.

  • Page 34: Optional Accessories

    S-Bus Telemetry adaptor is used to interface the POWERPACK/ECU to the various radio manufactures supported protocols. See instruction manual supplied with the adaptor for full details and specifications. 12 Jet Central BB Software 12.1 Introduction This application is included to provide a PC interface program to allow user viewing of the data from the...

  • Page 35: Using The Application

    The software is required to be installed on a PC running Windows 7 or higher, with 1 GB of RAM and 100 KB of free disk storage space. The software is supplied on the USB stick that was included with the Turbine or it can be downloaded from www.jetcentral.com.mx.

  • Page 36: Dynamic Graphics

    4. Activation menu graphics: In this menu, you can select the chart data to view (by default all active denoted by the check marks) 5. Graph area: This area displays the graphical form of the data. 6. Data Pointer: This table displays the numeric data which was selected in the graph area. 7.

  • Page 37: Safety Tips

    Under no circumstances charge your LiPo battery while installed in your aircraft • Never operate the turbine indoors Enjoy your new Jet Central Turbine. Your Jet Central Team welcomes you aboard and thanks you for selecting our product for your new turbine.

  • Page 38: Lifetime Turbine Warranty

    Lifetime Warranty period is applicable to the original owner. Original owner must register their purchase with Jet Central within 15 days of purchase. There will be no exceptions to this rule.

  • Page 39: Worldwide Network

    2F # 54 Shuang Feng Ed. 2-1-26 Tonotuji Sumuyosiku, jetcentralmiddleeast@gmail.com Hsien-Chuang City, Taipei Osaka City 5580042 +(886) 911 35 3718 06 6675 0100 sy3660@ms21.hinet.ne 06 6675 0104 www.jetsetj.com info@jetsetj.com Please take note of different time zones, as JET CENTRAL is a worldwide company.

  • Page 40: Appendix A: Thrust Graph

    Appendix A: Thrust Graph...

  • Page 41: Appendix B: Mounting Dimensions

    Appendix B: Mounting Dimensions This drawing is not fit to scale. Please check the website for a PDF that prints at scale.

  • Page 42: Appendix C: Pipe Gaps

    Appendix C: Pipe Gaps...
  • Page 43 Turbine Accessories Telemetry; Telemetry interface for most popular transmitter brands Smoke System Variable flow smoke system with integrated pump and solenoid valve On board Data Terminal Small and lightweight, low battery consumption, auto shut off function...

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