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Jonker Sailplanes JS3 Rapture Flight Manual Supplement

Jet sustainer
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Summary of Contents for Jonker Sailplanes JS3 Rapture

  • Page 3 Responsible for content: Issue 00 of this JS-3 Aircraft Flight Manual is in the approval process approved under the authority of Jonker Sailplanes DO Sections 2, 3, 4 and 6 are in the approval process by the SACAA. Copyright ©: Jonker Sailplanes (Pty) Ltd 
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  • Page 4 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page ii...
  • Page 5 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0 Document Management 0.1 Record of Revisions Issue Date Reason for Change Draft issue submitted to SACAA 00.32JS 08.02.2019 for approval Rev. 00.32JS Rev. Date: 08.02.2019 Page 0–1...
  • Page 6 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0.2 List of effective Sections Section Revision Date Number Reference of Pages 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue 08.02.2019 Initial Issue...
  • Page 7 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0.3 Record of Amendments Date of Issue/ Date of Signature Revision Insertion Rev. 00.32JS Rev. Date: 08.02.2019 Page 0–3...

  • Page 8: Table Of Contents

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0.4 Table of Contents Document Management ............0–1 Record of Revisions ............... 0–1 List of effective Sections ..............0–2 Record of Amendments ..............0–3 Table of Contents ................0–4 List of Figures ................. 0–6 List of Tables ..................
  • Page 9 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS JDU primary Controls ..............4–3 Modes overview ................4–5 Primary Modes ................4–6 Transition modes ................4–9 Engine Protection modes ............. 4–13 In-flight operating procedures ............4–14 4.10 Ground operation procedures............4–16 Engine status and information display ........

  • Page 10: List Of Figures

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0.5 List of Figures Figure 1-1: Jet System Illustration ..............1–3 Figure 2-1: Jet Sustainer Limitation Placard ........... 2–6 Figure 2-2: Engine Start-up Procedure Placard ..........2–7 Figure 2-3: Engine Shut-down Procedure Placard ......... 2–7 Figure 2-4: Emergency Fuel Shutoff Placard ..........

  • Page 11: List Of Tables

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 0.6 List of Tables Table 1.5-1: Engine Technical Data ............... 1–2 Table 2.2-1: Airspeed Limits ................2–1 Table 2.3-1: Airspeed Indicator Markings ............2–1 Table 2.4-1: Engine Technical Data ............... 2–2 Table 2.6-1: Power Plant Limitations ..............

  • Page 12: General

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 1 General 1.1 Introduction This manual has been prepared to provide pilots, instructors and maintenance personnel with all the information for the safe and efficient operation of the JS-3 sailplanes equipped with the jet sustainer system MD-TJ42.

  • Page 13: Technical Data

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 1.5 Technical Data Engine technical data MD-TJ42 Engine M&D Flugzeugbau GmbH, Friedeburg Manufacturer 97 000 RPM Maximum rotary speed 30 000 RPM Idle speed 35 daN (at MSL and ISA conditions) Thrust at maximum rotary speed Consumption at maximum rotary 60 kg/h...

  • Page 14: Engine System Illustration

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 1.6 Engine System Illustration Figure 1-1: Jet System Illustration Rev. 00.32JS Rev. Date: 08.02.2019 Page 1–3...
  • Page 15 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 1–4...

  • Page 16: Limitations

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2 Limitations 2.1 Introduction Section 2 includes operating limitations, instrument markings, and basic placards necessary for safe operation of the aircraft’s engine systems. The limitations included in this section in the approval process by the SACAA.

  • Page 17: Power-Plant Fuel And Oil

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2.4 Power-plant fuel and oil Table 2.4-1 gives the power plant, fuel and oil information. Engine technical data Diesel mixed with 2% 2-stroke oil Fuel Synthetic two stroke oil complying with specification API TA, API TB, API TC or JASO 22.2 liters Fuel capacity...

  • Page 18: Power Plant Limitations

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2.6 Power plant limitations Parameter Limitation 97 000 RPM Maximum Engine RPM 80 000 RPM Maximum Continuous RPM 790 °C Maximum EGT 1000 °C Maximum while Starting (max. 3 s) -15 °C Minimum operational outside air temperature 3000 m (10 000 ft) Maximum operating altitude (AMSL)

  • Page 19: Approved Manoeuvres

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2.7 Approved manoeuvres This aircraft is certified in the Utility category (U), but aerobatic maneuvers with the engine running are not permitted. 2.7.1 Approved flight rules Operation of the JS-3 in sustained flight is approved for VFR flight by day in VMC conditions only.

  • Page 20: Minimum Equipment List

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2.8 Minimum equipment list Additional instrumentation required if engine is fitted:  Magnetic direction indication  Jet display unit (JDU) 2.9 Temperature restrictions when flying with the engine running The engine operation is certified for an air temperature range of -15 °C to +40 °C.

  • Page 21: Limitations And Jet System Operation Placards

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 2.11 Limitations and jet system operation placards Limitation placards can be either fixed against the side walls or instrument panel or furnished as a single Placard Booklet located against the left-hand cockpit sidewall. Refer to information furnished in Placard Booklet JS03-AMM-00-001...
  • Page 22 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Figure 2-2: Engine Start-up Procedure Placard Figure 2-3: Engine Shut-down Procedure Placard Rev. 00.32JS Rev. Date: 08.02.2019 Page 2–7...
  • Page 23 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Figure 2-4: Emergency Fuel Shutoff Placard The Emergency fuel shutoff for the jet is installed forward of the Bugwiper switches (optional). Forward is open and back will close both the fuel lines. Figure 2-5: Fuel Type and Mixture Placard The fuel type as well as the mixture is shown on the Fuel Type and Mixture placard.
  • Page 24 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Figure 2-6: Refueling/Defueling Placard The refueling placard gives the direction of flow when refueling the glider. The refueling procedure is described in detail in Section 4.10.3. Figure 2-7: Fuse Box Layout Placard The fuse box layout placard shows the fuse types (values) as well as the corresponding component that the fuse protects.
  • Page 25 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 2–10...

  • Page 26: Emergency Procedures

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 3 Emergency procedures 3.1 Introduction Section 3 provides checklists and amplified procedures for coping with emergencies that may occur relevant to the Jet System. 3.2 Engine failure in flight If an engine failure occurs during flight, the engine can be restarted or retracted.

  • Page 27: Fire

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS NOTE: If a restart is not possible, the engine may be retracted and the soaring flight continued, or a landing may be performed with the engine extended. NOTE: If no action is taken after an engine failure, the engine will be automatically cooled down, provided that the electrical supply is sufficient.
  • Page 28 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS If an engine fire is observed with the engine not running, the following action should be taken: 1. Close the fuel valve switch positioned on left side of the cockpit, forward of the Bugwiper switches (optional). 2.
  • Page 29 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 3.3.2 Engine fire in flight If an engine fire occurs during flight, the engine must be immediately shut down. An engine fire can be suspected with abnormal high EGTs especially with the engine running at a low RPM or not running. 1.
  • Page 30 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 3.3.3 Electrical fire An electrical fire is very unlikely due to the protection with circuit breakers for all systems. Each battery has a circuit-breaker at the terminals and each battery device has a circuit breaker switch on the instrument panel.
  • Page 31 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 3.3.5 Retracted temperature exceeding maximum temperature If the jet system is retracted and the measured temperature exceeds 55 °C the red warning light on the JDU will be illuminated. Immediate action should be taken: 1.

  • Page 32: Normal Operating Procedure

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4 Normal operating procedure 4.1 Introduction Section 4 provides checklist and amplified procedures for the conduct of normal operations. Additional information relevant to the display unit is described in Section 5. 4.2 Daily Inspection Before the first flight of the day, the jet sustainer must be inspected carefully to ensure its reliable operation.
  • Page 33 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.3.1 Fuel related inspection 1. Check that the drain in the bottom of the box is clear of obstruction 2. Check for any signs of fuel leaks from the fuel drain 3.

  • Page 34: Jdu Primary Controls

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.4 JDU primary Controls The JDU has 3 primary controls:  Jet Master Switch (OFF – ON)  Jet Control toggle switch (RET – EXT – RUN)  Jet Thrust Dial Jet Master Switch Jet Control...
  • Page 35 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS The Jet Thrust Dial is used as follows in the settings mode:  Press and hold – Enter settings mode  – Short press Select option  – Rotate dial Move cursor or change value ...

  • Page 36: Modes Overview

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.5 Modes overview The main operating modes for the jet sustainer are selected using the JDU Jet Control toggle switch. The primary modes are:  Retracted mode  Extended mode  Run mode RUN mode Starting...

  • Page 37: Primary Modes

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.6 Primary Modes 4.6.1 Retracted Mode The retracted mode is selected by moving the Jet Control toggle switch to the bottom position. The pylon will move to this position only if the EGT is below a set limit.
  • Page 38 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.6.3 Run Mode The Run Mode is selected by moving the Jet Control toggle switch to the top position, resulting in the Jet initiating the start sequence. will display running screen during this mode.
  • Page 39 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS The minimum RPM (idle) is 30 000. The desired RPM is indicated by the white arc on the outside of the RPM arc. NOTE: It is good practice to advance the RPM slowly. At higher density altitudes a flameout may occur if rapid throttle changes are made.

  • Page 40: Transition Modes

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.7 Transition modes Transition modes are modes not directly selectable by the pilot but are required to transition from the current mode to the newly selected mode. The following main transition modes are explained: ...
  • Page 41 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.7.2 Starting The Start Mode is automatically initiated when the Jet Control toggle switch is moved to the RUN (top) position. The Jet Electronic Control Unit (ECU) automates the following start sequence: ...
  • Page 42 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.7.3 Cooling The Cooling Mode is automatically initiated when the Jet Control toggle switch is moved to the EXT (middle) position or RET (bottom) position after the engine was running. During this mode the starter motor will be turning the compressor to facilitate the correct cooling of the engine.
  • Page 43 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.7.4 Retracting Retraction is initiated when the Jet Control toggle switch is moved to the RET (bottom) position and the temperature (EGT) is below a pre-set threshold. measured exceeds maximum set temperature (factory default is 55 °C or 131 °F), the system will remain in the Cooling Mode.

  • Page 44: Engine Protection Modes

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.8 Engine Protection modes 4.8.1 Safe mode operation The system has been designed to enter a Safe mode when RPM signal is lost temporarily. If safe mode is entered, the fuel flow is reduced to ensure that the engine will not over-speed.

  • Page 45: In-Flight Operating Procedures

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.9 In-flight operating procedures 4.9.1 Inflight start procedure Jet Master Switch Jet Control Switch Jet Thrust Dial The inflight start procedure is as follows: 1. Ensure fuel shut off switch, positioned on the left-hand side of the cockpit, is in the “OPEN”...
  • Page 46 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS NOTE: The time duration from initiating extension to idle power is approximately 40 seconds. NOTE: If a start was unsuccessful or the engine stops running in RUN mode, a restart can be initiated by cycling the Jet Control toggle switch from RUN to EXT and back to RUN.

  • Page 47: Ground Operation Procedures

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.10 Ground operation procedures 4.10.1 Maintenance mode Within the retracted mode, a maintenance mode can be selected from the Settings screen. The Settings Screen is selected by pressing and holding the Thrust Control Dial. The maintenance mode option is visible by scrolling down on the menu.
  • Page 48 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Ground Start procedure: 1. Ensure fuel shut off switch, positioned on the left-hand side of the cockpit, is in the “OPEN” (forward) position 2. Switch the Jet Master Switch on the JDU to the “ON” position. 3.
  • Page 49 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.10.3 Refueling Refueling is done using the internal fuel pump activated by the refueling switch in the engine box. The engine box is accessed by switching the engine to maintenance mode. This will extend the engine to the correct position for refueling. The fuel supply line is connected with a quick connector fitting located on the right side of the engine box.
  • Page 50 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Refueling is performed as follows: 1. Power up the jet system and enter maintenance mode to partially extend the engine. 2. Ensure that the fuel tank vent hole is clear. This is done by visually inspecting the vent hole, located in the wheel box.
  • Page 51 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS CAUTION: Only use a refuel supplied pipe approved by M&D with proper filters. Fuel contamination may cause engine failures. CAUTION: Do not switch the system OFF and back ON while refueling. The pylon will be automatically retracted when powered ON.
  • Page 52 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 4.10.5 Alternative Refueling/De-fueling If the refueling system of the glider malfunctions the alternative refueling method can be used in order to fill the tanks. For this method of refueling/defueling, an external pump is required. The fuel hose is plugged into the connector in the wheel well and fuel is then pumped into the tanks until the required amount of fuel has been dispensed.
  • Page 53 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 4–22...

  • Page 54: Engine Status And Information Display

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5 Engine status and information display Information is displayed to the pilot on the Jet Display Unit (JDU). 5.1 Status Indicators Powerplant status is indicated by colored LEDs above and below the screen, as illustrated in Figure 5-1 as follows: System Status...
  • Page 55 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Status light Description Steady green - Engine is running normally Flashing green - Starting mode in progress Steady amber - Caution condition, example low fuel System Steady red - Warning condition Status ...
  • Page 56 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.1.1 Display Information is displayed to the pilot on the 50 mm color display screen. Figure 5-2 gives the detail of symbols used on the display. Fuel qty EGT (°C) (litres) EGT bar RPM bar Throttle...
  • Page 57 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Table 5.1-2: RPM Limitations Display 5.1.3 Throttle setting The throttle setting is indicated by the light grey arc on the outside of the RPM bar. The desired throttle setting is adjusted by rotating the Jet Thrust Dial.
  • Page 58 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.1.6 Probe When “Probe” is selected, both the fuel bar and the quantity text are determined using the input from the fuel probe. The fuel bar and quantity text display similar values. During sustained increased G- maneuvers the fuel probe may be over-reading slightly.
  • Page 59 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.1.10 Other information Additional information is displayed on the bottom left of the screen. Pressing the Thrust Control Dial, cycles the bottom left display window between:  Fuel flow (in litres/hour) ...

  • Page 60: Error Messages

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2 Error messages Error messages are displayed on the bottom of the JDU screen. 5.2.1 Errors during Starting Following error messages may occur during start up:  No Ignition  No Idle Speed ...
  • Page 61 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.1 No Ignition Error Description: The temperature did not reach the required value during start. As a result, the start sequence was terminated. Possible Causes:  Fuel valve not open  No fuel in fuel tanks ...
  • Page 62 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.2 No idle speed Error Description: The RPM did not reach idle RPM after a pre-set time interval (factory default is 30 seconds). As a result, the start sequence was terminated. Possible Causes: ...
  • Page 63 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.3 Heater No Current Error Description: No current was detected after the glow plug was switched on. Possible Causes:  Glow plug fuse blown on the ECU  Defective glow plug ...
  • Page 64 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.4 Heater Over-current Error Description: Glow plug exceeded maximum allowed current. Possible Causes:  Defective glow plug  Wiring defect Pilot action required:  Attempt one more start  Retract engine and switch system off ...
  • Page 65 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.5 Starter Over-current Error Description: Starter motor exceeded maximum allowable current. Possible Causes:  Defective starter motor  Serious engine defect Pilot action required:  Attempt one more start  Retract engine and switch system off ...
  • Page 66 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.6 Start valve Over-current Error Description: Start fuel line exceeded maximum allowable current. Possible Causes:  Electrical defect Pilot action required:  Retract engine and switch system off  Ground maintenance actions are required. Rev.
  • Page 67 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.1.7 Fuel valve Over-current Error Description: Main Fuel line solenoid exceeded maximum allowable current. Possible Causes:  Electrical defect Pilot action required:  Retract engine and switch system off  Ground maintenance actions are required. Rev.
  • Page 68 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.2 Errors during Running The following lists the error messages that may occur during the RUN state:  Overheat  Flameout  No RPM  Pump Overcurrent 5.2.2.1 Overheat Error Description: Measured EGT exceeded 850 °C (1562 °F).
  • Page 69 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.2.2 Flameout Error Description: Measured EGT dropped below minimum pre-set value. Possible Causes:  Fuel starvation  Throttle advance too fast after start-up  Spool-up failure at high density altitudes  Low battery voltage ...
  • Page 70 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.2.3 No RPM Error Description: No RPM signal is measured during operation. Possible Causes:  Engine stopped during RUN mode  RPM sensor failure  Sensor board failure Pilot action required: ...
  • Page 71 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.2.4 Pump overcurrent Error Description: Fuel pump exceeded maximum allowable current. Possible Causes:  Fuel pump failure  Blocked or restricted fuel filters  Fuel solenoid failure Pilot action required:  Attempt restart ...
  • Page 72 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.3 Other errors The following are error messages not associated specifically with Start or Run modes:  Kinematic overcurrent  Kinematic timeout  No Data from ECU  No SD Card 5.2.3.1 Kinematic overcurrent Error Description:...
  • Page 73 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.3.2 Kinematic timeout Error Description: The electromechanical actuator driving the pylon did not reach the limit switches within the pre-set time duration. Possible Causes:  Mechanical defect in the jet box area Pilot action required: ...
  • Page 74 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.3.3 No data from ECU Error Description: The JDU cannot establish communication with ECU. Possible Causes:  Low battery voltage  Cable not plugged into the JDU  Wiring defect  ECU defect (possible internal fuse blown) Pilot action required: ...
  • Page 75 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 5.2.3.4 No SD Card Error Description: The ECU cannot detect the internal SD card. No SD card Possible Causes:  Internal SD card is removed from ECU  Defective SD card ...

  • Page 76: Performance

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 6 Performance 6.1 Engine performance Figure 6-1 provides an indication of the change in static thrust and fuel consumption versus RPM. consumption Figure 6-1: Static Thrust and Fuel Consumption vs RPM Rev.

  • Page 77: Flight Performance

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 6.2 Flight performance 6.2.1 Climb performance and range Table 6.2-1 gives the optimum IAS to climb for best range at empty weight with the following assumptions:  Usable fuel quantity (21.87 liters / 5.78 US gal) ...
  • Page 78 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Pressure Climb Climb Glide Total Altitude Rate Dist. Dist. Dist. (km/h) (m/s) (km) (km) (km) SL 1000 1000 80 000 2000 2000 3000 SL 1000 1000 97 000 2000 2000 3000 Table 6.2-1: Range from Saw-tooth Profile for Different RPM Settings at 400 kg –...
  • Page 79 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Indicated Pressure Climb Climb Glide Total Airspeed Altitude Rate Dist. Dist. Dist. (ft) (kts) (NM) (NM) (NM) (kts) 3300 3400 80 000 6700 6700 10000 3300 3300 97000 6700 6700 10000 Table 6.2-2: Range from Saw-tooth Profile for Different RPM Settings at 882 lbs –...
  • Page 80 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 6.2.2 Cruise performance Table 6.2-3 gives the expected range and endurance in level flight for RPM settings at different altitudes and a weight of 400 kg (incl. fuel). Table 6.2-3 is based on ISA conditions and maximum fuel (40 litres / 10.5 US gal).
  • Page 81 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 6–6...

  • Page 82: System Description

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 7 System description 7.1 Kinematic system The kinematic system is driven by a 12-volt electromechanical linear actuator with integral limit switches. The actuator is controlled by the JDU and is used to operate the front pylon, main doors, as well as the front finger door.
  • Page 83 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 7.1.1 Front pylon The front pylon’s movement is operated by an arm attached to the linear actuator as shown in Figure 7-1. The actuator lowers and raises the pylon to which the MD-TJ42 Jet engine is mounted. Figure 7-1 shows the pylon in the fully extended (raised) position.
  • Page 84 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 7.1.3 Front door The front door is also attached to the cam system and is opened and closed by a pushrod and spring attached to the cam. Figure 7-3 shows the pylon in the extended (raised) position with the front door opened (downwards movement into the engine bay).
  • Page 85 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 7.1.4 Fuel System Fuel is contained in two interconnected tanks located inside the fuselage. No possibility exists to select fuel supply from the different tanks. Fuel management is facilitated by components fixed to the right side of the bottom fuel tank.
  • Page 86 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS There are three fuel filters in the fuel system. The first filter, using a brass sintered element, is situated between the tank outlet and the fuel pump. The second filter is situated between the refueling inlet and the bottom tank.
  • Page 87 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Figure 7-5: Fuel System Layout Diagram Rev. 00.32JS Rev. Date: 08.02.2019 Page 7–6...

  • Page 88: Electrical System

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 7.2 Electrical system The electrical power of the jet sustainer system is supplied by maintenance-free LiFePO type 12-volt batteries. One (or optionally two) main batteries in the luggage compartment area are fitted with an additional connector that is plugged into the jet sustainer electrical system.
  • Page 89 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Figure 7-6: Schematic Layout of Electrical System Rev. 00.32JS Rev. Date: 08.02.2019 Page 7–8...

  • Page 90: Settings

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8 Settings The Settings Screen is selected by pressing and holding the Thrust Control Dial. The following options are available in the Settings menu:  Setting fuel and battery Levels  Setting operation altitude and temperatures ...

  • Page 91: Fuel And Battery Levels

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.1 Fuel and battery levels This setting allows the pilot to adjust the calculated fuel levels and remaining battery capacity. The fuel quantity is set by selecting the fuel quantity using the Thrust Control Dial.

  • Page 92: Altitude And Outside Air Temperature

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.2 Altitude and Outside air temperature This setting allows the pilot to adjust the operating altitude and OAT. Engine performance enhanced in the future using these parameters. Optionally, the JDU may future linked with...

  • Page 93: Password

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.4 Password The Configurations section is accessible by entering the given code in the Password box, using the Jet Thrust Dial. CAUTION: Incorrect configuration of the system may cause system not to function as designed. Rev.

  • Page 94: Configuration

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.5 Configuration The configuration menu consists of  Throttle configuration  Fuel configuration  Battery setup 8.5.1 Throttle configuration The throttle configuration allows selection of the throttle input between either, controlled via the JDU Trust Dial (default) or via an external analogue throttle.
  • Page 95 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.5.2 Fuel configuration 8.5.2.1 Quantity determination The fuel configuration allows selection of the way the fuel quantity is display during operation. 8.5.2.2 Maximum quantity The maximum usable fuel quantity is adjustable in the “Maximum quantity”...
  • Page 96 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 8.5.2.5 Fuel level calibration Fuel probe calibration is done via the “Fuel Probe Cal” screen. A 10-bit digital value displayed in brackets (692d) represents the measured fuel level from the fuel probe (0 is empty, 1024 is full).
  • Page 97 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 8–8...

  • Page 98: Service Bulletins

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 9 Service Bulletins This section starts with an overview table of all optional SBs, in which the owner or operator should mark which SBs he voluntary implemented and which not. All implemented optional SBs must be printed and added to this section by the owner or operator.
  • Page 99 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 9–2...

  • Page 100: Stcs And Minor Change Approvals

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 10 STCs and Minor Change Approvals Reference No. Rev. Date Description Rev. 00.32JS Rev. Date: 08.02.2019 Page 10–1...
  • Page 101 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 08.02.2019 Page 10–2...

  • Page 102: Contact

    JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS 11 Contact 11.1 Type Certificate Holder Jonker Sailplanes (Pty) Ltd 1 Tiger Moth Street 26446 Potchefstroom South Africa  +27 (0) 82 897 8977 Mail: info@js1.co.za 11.2 Manufacturer / Maintenance Jonker Sailplanes (Pty) Ltd...
  • Page 103 JS-3 Jet Sustainer JS03-AFM-00-002 Flight Manual Supplement Issue: 00.32JS Intentionally left blank Rev. 00.32JS Rev. Date: 06.02.2019 Page 11-2...

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