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JetCat RX Series - User Manual

JetCat RX Series
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Ingenieurbüro CAT, M. Zipperer GmbH, Wettelbrunner Straße 6
79282 Ballrechten-Dottingen
Tel: + 49 (0) 7634 - 5056 - 800
Fax: + 49 (0) 7634 -5056 - 801
Internet: www.jetcat.de
JetCat RX/RXi Turbines with V10 ECU
V1.2

Table of Contents

Questions and Answers

  • R
    Randall StevensonAug 13, 2025
    Why does my JetCat RX quit with a trail of white smoke?
    • A
      Ariel EvansAug 14, 2025
      The engine quitting with white smoke is typically caused by air in the fuel system or fuel failure due to low RPM. Ensure there are no leaks in the fuel system, and most importantly, remove all air from the fuel filter. The fuel filter should hang freely, preferably mounted vertically. When purging the fuel system, tap the filters while the pump runs to dislodge trapped air. Consider using a BVM Ultimate Air Trap.
  • S
    Shawn SchmidtAug 18, 2025
    What to do if my JetCat RX turbine doesn't ignite?
    • V
      victoria45Aug 18, 2025
      If the turbine fails to ignite, the fuel supply lines may be empty or not purged, the ECU battery might be weak, or the kero start igniter could have failed. Ensure you purge the fuel system using the Test Functions Menu and charge the ECU battery. In rare cases of igniter failure, contact JetCat for information about using a temporary external plug.
  • J
    John BrooksAug 21, 2025
    What to do if my JetCat Engine starting process fails?
    • D
      Diana DunlapAug 21, 2025
      If the starting process fails, it could be due to several reasons: * The turbine is still too warm; make sure the Cool Down sequence is completed (wait until the green OK LED stops blinking). * Low battery or faulty connection; charge the battery and check the ECU's battery connection. * Defective glow plug (red Pump running LED blinks); replace the glow plug. * Three-conductor cable for starter motor and glow plug disconnected; check the cable and ensure a proper connection from the ECU to the turbine.
  • C
    castillopeggyAug 26, 2025
    What to do if my JetCat Engine turbine ignites, but the start process is discontinued?
    • S
      Stacey CervantesAug 26, 2025
      If the turbine ignites but the start process is discontinued, it may be due to air in the fuel feed lines or the fuel pump not running. Check for air leaks in the fuel system, examining all Festo fittings, nipples, clunk, and filter. Also, check for fuel filter clogs. Test the pump in the Test Functions menu; the fuel pump must run as soon as the red Pump running LED illuminates.
  • L
    Leslie GibsonAug 28, 2025
    Why does my JetCat RX turbine quit with Watchdog Failure?
    • M
      Matthew MorrowAug 28, 2025
      If the turbine quits with a Watchdog Failure, it indicates that static discharge reset the ECU. To prevent this, avoid mounting the ECU directly to the fiberglass body of the plane. Use a plywood mount with foam tape and Velcro between the body and the ECU. If the plane has a glossy finish and the failure occurred after takeoff, spray the tires with an anti-static spray.
  • S
    Stephanie ArnoldSep 1, 2025
    How to fix JetCat Engine ECU when it doesn't follow full commands from the throttle stick?
    • N
      nunezmarySep 1, 2025
      If the ECU isn't following throttle stick commands, it's likely due to a programming alteration in the R/C transmitter. Check the alignment with the RC-Check menu and re-align the ECU to the R/C system.
  • J
    John RiceSep 5, 2025
    Why does my JetCat RX Engine starter unit slips and makes noise?
    • M
      Michael ColeSep 5, 2025
      If the starter unit slips and makes noise, it's caused by dust and oil sediment on the compressor nut and O-ring. Clean the O-ring and compressor nut periodically with a cotton swab and solvent.
  • A
    aarontapiaSep 9, 2025
    What causes erratic temperature or RPM readings in my JetCat Engine EGT?
    • K
      Katherine JuarezSep 9, 2025
      Erratic temperature or RPM readings from the EGT can be caused by the transmitter antenna being too close to the model. Keep the antenna away from the model, as this can cause false readings.

Summary

JetCat Three Year Limited Warranty

Safety, Meaning of Symbols

Safety Precautions

Quick Start Section for RX Turbines with V10 ECU

Identify Components

Lists and illustrates all the components included in the turbine kit.

Connections

Complete System Connection Diagram RX

Illustrates the wiring diagram for connecting the RX turbine system components.

Complete System Connection Diagram RXi

Illustrates the wiring diagram for connecting the RXi turbine system components.

Ground Support Unit (GSU)

GSU Control Panel Descriptions

Describes the layout and functions of the GSU control panel buttons and display.

GSU Switch Descriptions

Explains the function of each switch on the GSU for navigating menus.

JetCat V10 ECU

Switching on the ECU

Provides instructions on how to power on and activate the JetCat V10 ECU.

Single or Two Channel Operation?

How to Set Your ECU for Single Channel Operation

Step-by-step guide to configure the ECU for single-channel RC control.

Setup Failsafe Mode

Setting the Failsafe

Details the procedure for programming the failsafe parameters in the ECU.

“Learn R;C”. Teach the ECU to the R;C System

Preparing Fuel and Fuel System

Verify Failsafe Programing

How to confirm that the failsafe function has been correctly programmed.

Running the Turbine for the First Time

Starting and Stopping the Turbine

Step-by-step guide for initiating, running, and shutting down the turbine.

GSU (Run Menu Default) Display Symbols

Initial Default Display Screen After Power Up

Shows the standard display when the GSU is powered on.

After Power Up - “Error Condition” Display Screen

Describes error messages and symbols displayed after startup if issues are detected.

Troubleshooting

Most Frequent Errors: Cause and Remedy

Identifies common errors, their causes, and recommended corrective actions.

Reason for an Unexpected Shut-Down

Explains how to diagnose and identify causes for sudden engine shutdowns.

How to Diagnose a Shut-Down from the Saved Data

Guides on using logged data to determine the cause of a turbine shutdown.

Smoker Valve

Airspeed Sensor

Connection Diagram for the Airspeed Sensor

Limits Menu Parameters Assigned to the Airspeed Sensor

Calibration of the Air Speed Sensor

Reset to Default Value

JetCat RX Series Specifications

General IconGeneral
TypeTurbine
Thrust22 - 240 N
Thrust Range22 - 240 N
Weight0.5 - 3.5 kg
Diameter80 - 150 mm
FuelKerosene
Lubrication5% Turbine Oil mixed with Fuel
StarterElectric

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