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Jonker Sailplanes JS1 Flight Manual

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JS1 Jet Sustainer Flight Manual Supplement - Issue 1
Date of issue: 01.04.2016
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  • Page 1 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Date of issue: 01.04.2016 Accepted section Page 0-0...
  • Page 2 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 JS1 Jet Sustainer Flight Manual Supplement JS1 with TJ-42 sustainer engine Model: Serial number: Registration Number: 1A-5.04.50 Document number: JS1 Jet Sustainer Flight Manual Supplement Title: 01/04/2016 Date of issue: J.S.U Jonker...
  • Page 3 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 0. General 0.1. Record of Revision Any revision of the present manual, except actual weighing data, must be recorded in the following table and in the case of approved Sections, specifically endorsed by the Agency.
  • Page 4 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Rev. Affected Affected Date of Description Approved Date of Date of Signature Section Pages Issue Approval Insertion 01.04.2016 Date of issue: 01.04.2016 Accepted section Page 0-3...

  • Page 5: List Of Effective

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 0.2. List of effective pages Affected Date of Affected Date of Affected Date of Affected Date of Pages Issue Pages Issue Pages Issue Pages Issue Date of issue: 01.04.2016 Page 0–4...

  • Page 6: Table Of Contents

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 TABLE OF CONTENTS General ................0-2 0.1. Record of Revision ............0-2 0.2. List of effective pages ............. 0–4 General ................1–1 1.1. Introduction ..............1–1 1.2. Certification basis ............1–1 1.3.
  • Page 7 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.5. Engine Protection modes ..........4–12 4.6. In-flight operating procedures ........4–13 4.7. Ground operation procedures ........4–16 Engine status and information display ....5–23 5.1. Status Indicators ............5–23 5.2.
  • Page 8 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 List of Figures Figure 1-1: Jet system illustration ............. 1–4 Figure 2-1: Jet sustainer limitation placard ........2–13 Figure 2-2: Fuel placard..............2–13 Figure 2-3: Engine Start-up procedure placard ......2–14 Figure 2-4: Engine Shut-down procedure placard ......
  • Page 9 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 List of Tables Table 1-1: Engine technical data ............1–3 Table 2-1: Airspeed limits ..............2–5 Table 2-2: Airspeed indicator markings ..........2–6 Table 2-3: Engine technical data ............2–7 Table 2-4: Engine technical data ............2–9 Table 4-1: Throttle settings and thrust ..........
  • Page 10 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 LIST OF ABBREVIATIONS Electronic Control Unit Exhaust Gas Temperature Jet Display Unit Jonker Sailplanes Outside Air Temperature Revolutions Per Minute Liters Per Hour Gallons per hour (US Gallons) Visual flight rules Visual meteorological conditions Date of issue: 01.04.2016...

  • Page 11: General

    1.2. Certification basis The JS1 fitted with the turbine jet engine is simply a sustainer version of the pure sailplane. A jet system designed to sustain the glider in flight is fitted in the rear fuselage. The system is completely retractable...

  • Page 12: Warnings, Cautions And Notes

    1.4. Descriptive Data The JS1 with TJ-42 is a sustainer version of the pure sailplane. A jet system designed to sustain the glider in flight is fitted in the rear fuselage. The system is completely retractable and does not impact the normal operation of the glider during conventional soaring flight.

  • Page 13: Technical Data

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 1.5. Technical Data Engine technical data M&D TJ-42 Engine M&D Flugzeugbau Manufacturer GmbH, Friedeburg 97000 RPM Maximum rotary speed 30000 RPM Idle speed 38 daN Thrust at maximum rotary speed ±60 kg/h Consumption at maximum rotary speed 0.161 kg/Nh...

  • Page 14: Engine System Illustration

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 1.6. Engine system illustration Figure 1-1: Jet system illustration Date of issue: 31.03.2016 Page 1–4 Accepted section...

  • Page 15: Limitations

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 have been approved by the SACAA.

  • Page 16: Airspeed Indicator Markings

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.3. Airspeed indicator markings The airspeed indicator requires the following additional markings when fitted with the jet turbine: Marking Significance 18 m 21 m 135 km/h Blue Best rate-of-climb speed V...

  • Page 17: Power-Plant Fuel And Oil

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.4. Power-plant fuel and oil Table 2-3 gives the power plant, fuel and oil information. Engine technical data Diesel mixed with 2% 2-stroke oil Fuel 2-stroke oil Castrol Super TT or Castrol; Sier TTS...

  • Page 18: Power Plant Instrument Markings

     Battery voltage  Fuel flow  Engine status  Error messages Refer to JS1 Jet Sustainer Flight Manual Supplement Section 5 for a detailed description of the power plant instrument markings. Date of issue: 31.03.2016 Page 2–8 Accepted section...

  • Page 19: Power Plant Limitations

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.6. Power plant limitations Parameter Limitation 97 000 RPM Max Engine RPM 80 000 RPM Max Continuous RPM 790 °C Max continuous EGT -15 °C Minimum operational outside air temperature 3000m (10 000ft)

  • Page 20: Approved Manoeuvres

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.7. Approved manoeuvres This aircraft is certified in the Utility category (U). With the jet engine running, the following aerobatic manoeuvres are permitted (18 m configuration only):  Lazy Eight ...

  • Page 21: Kinds Of Operation

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.8. Kinds of operation 2.8.1. Approved flight rules Operation of the JS-1 in sustained flight is approved for VFR flight by day in VMC conditions only. 2.8.2. Engine start, run-up, taxi procedures Taxi is not approved for the jet sustainer.

  • Page 22: Temperature Restrictions When Flying With The Engine Running

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.10. Temperature restrictions when flying with the engine running Flights in conditions below -15°C are prohibited. When the outside air temperature is less than -15°C, a descent to lower altitudes (higher temperatures) must be conducted or the engine must be shut down.

  • Page 23: Limitations And Jet System Operation Placards

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 2.12. Limitations and jet system operation placards The limitation placard for the operation of the Jet System is listed below. This placard is positioned on the left hand side of the cockpit frame.

  • Page 24: Figure 2-3: Engine Start-Up Procedure Placard

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Figure 2-3: Engine Start-up procedure placard Figure 2-4: Engine Shut-down procedure placard Date of issue: 31.03.2016 Page 2–14 Accepted section...

  • Page 25: Emergency Procedures

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 3. Emergency procedures 3.1. Introduction Section 3 provides checklist 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 26 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 NOTE: If no action is taken after an engine failure, the engine will be automatically cooled down, provided that the electrical supply is sufficient. CAUTION: After an engine failure, the normal gliding attitude must...

  • Page 27: Fire

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 3.3. Fire 3.3.1. Engine fire on the ground An engine fire may occur following one or more failed start attempts. In such a case unburned fuel inside the turbine may be ignited, resulting in exhaust flames from a “wet start”.
  • Page 28 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4. Wait until all excess fuel inside the turbine is burnt. 5. Do not retract the engine while hot or while any flames are visible. If an engine fire spreads into the fuselage area, it is regarded as a hazardous situation and immediate action is required: 1.
  • Page 29 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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.
  • Page 30 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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: Normal Operating Procedure

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4. Normal operating procedure 4.1. JDU primary Controls The JDU has 3 primary controls:  Jet Master Switch (OFF – ON)  Jet Control toggle switch (RETR – EXT – RUN) ...
  • Page 32 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 The Jet Thrust Dial consists of a rotary dial combined with a push button. The rotating dial is used to adjust the throttle setting, and to enter information in the settings and configuration mode.

  • Page 33: Modes Overview

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.2. 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 ...

  • Page 34: Primary Modes

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 The transition modes (not directly selectable by the pilot) are:  Starting  Extending  Retracting  Cooling 4.3. Primary Modes 4.3.1. Retracted Mode The retracted mode is selected by moving the Jet Control toggle switch to the bottom position.
  • Page 35 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.3.2. Extended Mode The Extended mode is selected by moving the Jet Control toggle switch to the center position. If this mode is selected while the Jet Engine is running, the engine will be switched OFF and cooled down.

  • Page 36: Table 4-1: Throttle Settings And Thrust

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.3.3. 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. The JDU will display the running screen during this mode.
  • Page 37 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 NOTE: It is good practice to advance the RPM slowly. At higher density altitudes a flameout may occur if the throttle is advanced rapidly from idle. To shut down the turbine engine the Jet Control toggle switch is moved to the Retract (bottom) position or Extend (middle) position.

  • Page 38: Transition Modes

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.4. 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 39 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.4.2. 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 40 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.4.3. Cooling Cooling Mode automatically initiated when the Jet Control toggle switch is moved to the EXT (middle) position or RETR (bottom) position after the engine was running. During this mode the starter motor will be turning the compressor to facilitate the correct cooling down of the engine.
  • Page 41 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.4.4. Retracting Retraction is initiated when the Jet Control toggle switch is moved to the RETR (bottom) position and the temperature (EGT) is below a pre- set threshold. If the measured EGT exceeds the maximum set temperature (factory default is 55°C or 131°F), the system will remain in the Cooling Mode.

  • Page 42: Engine Protection Modes

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.5. Engine Protection modes 4.5.1. 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 43: In-Flight Operating Procedures

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.6. In-flight operating procedures 4.6.1. Inflight start procedure The inflight start procedure is as follows: 1. Ensure fuel shut off valve, positioned on the left hand side of the cockpit, is in the “OPEN” (forward) position.
  • Page 44 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 NOTE: A compressor stall (flame out) may be experienced at higher density altitudes if the throttle is advanced from IDLE. Spool-up reliability can be improved by:  Allow the engine to warm up (up to 8 seconds depending on OAT) before advancing the throttle ...
  • Page 45 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.6.2. Inflight engine stop procedure The inflight shut down procedure is as follows: 1. Reduce the Thrust to the IDLE setting. Maintain a safe airspeed below V (140km/h or 76 kts).

  • Page 46: Ground Operation Procedures

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.7. Ground operation procedures 4.7.1. 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 47 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.7.2. Ground start procedure Ground starts may be performed using the same start procedure used during flight. The following safety measures must be taken:  Ensure the aircraft is positioned in an area safe for testing the engine.
  • Page 48 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 CAUTION: Use ear-protection during all Jet running tests. WARNING: Do not touch the engine or have any object close to the intake or exhaust nozzle during operation. NOTE: If the fuel supply lines to the engine require bleeding, it may take 3 or more start cycles to have a successful start.
  • Page 49 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.7.3. Refueling Refueling is done by switching the engine to maintenance mode. This will extend the engine to the correct position for refueling. The fuel is pumped through a quick connector fitting located on the left side of the engine box.
  • Page 50 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 The refueling kit supplied by JS includes the following: 1. Refueling/De-fueling kit box 2. Fuel Hose 1 (Quick connector fitting at only one end) 3. Fuel Hose 2 (Quick Connector fitting at both ends) Refueling is performed as follows: 1.
  • Page 51 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 CAUTION: If the vent hole is blocked do not continue refueling. Pressure build up could rupture the tanks. CAUTION: Ensure refueling equipment kept free contamination. Dirt and dust will reduce reliability of the system.
  • Page 52 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 4.7.4. De-fueling Defueling may be required for maintenance purposes, replacement of old fuel or when fuel probe calibration is required. Defueling is performed using the same procedure and hardware as with refueling.

  • Page 53: Engine Status And Information Display

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5. Engine status and information display Information is displayed to the pilot on the Jet Display Unit (JDU). 5.1. Status Indicators Power-plant status is indicated by coloured LEDs above and below the screen, as illustrated in Error! Reference source not found.

  • Page 54: Table 5-1: Status Indicators Description

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Status Description light Steady green - Engine is running normally Flashing green - Starting mode in progress System Status Steady amber - Caution condition, example low fuel Steady red - Warning condition.

  • Page 55: Figure 5-2: Display

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.1.1. Display Information is displayed to the pilot on the 50mm colour display screen. Figure 5-2 gives the detail of symbols used on the display. Fuel qty EGT (°C) (litres) RPM bar...

  • Page 56: Table 5-2: Rpm Limitations Display

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.1.2. RPM RPM is displayed in the center of the screen. A needle indicates the RPM on an analogue scale and the numeric value is also indicated in the center. The limitations and colour convention is given in the following table.

  • Page 57: Table 5-3: Temperature Limitations Display

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 EGT range Bar Colour 450°C to 790°C Normal range Green (842°F to 1454°F) Above 790°C Over-temperature (1454°F) Table 5-3: Temperature limitations display Date of issue: 31.03.2016 Page 5–27 Accepted section...
  • Page 58 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.1.5. Fuel level The fuel quantity is displayed on the JDU in graphical and numerical format on the left hand side of the screen. The displayed fuel quantity is dependent on the configuration set in Fuel Configuration.
  • Page 59 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.1.8. Probe and calculation When “Both” is selected, the fuel bar displays the fuel quantity as measured by the fuel probe. The quantity text is determined using the calculation method. The fuel bar and quantity text display may therefore show different values.
  • Page 60 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 61: Error Messages

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.2. Error messages Error messages are displayed on the bottom of the JDU screen. 5.2.1. Errors during Starting The following lists the error messages that may occur during start up: ...
  • Page 62 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 ...
  • Page 63 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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.
  • Page 64 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 65 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 66 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 67 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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.
  • Page 68 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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.
  • Page 69 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 Date of issue: 31.03.2016 Page 5–39...
  • Page 70 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.2.2.1. Overheat Error Description: Measured EGT exceeded 850°C (1562 °F). Possible Causes:  Defective engine  Engine fire  Defective RPM sensor causing an engine over-speed  Incorrect EGT measured Pilot action required: ...
  • Page 71 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 ...
  • Page 72 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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  RPM/EGT sensor board failure Pilot action required: ...
  • Page 73 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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: ...
  • Page 74 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 Date of issue: 31.03.2016...
  • Page 75 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.2.3.1. Kinematic overcurrent Error Description: The electromechanical actuator driving the pylon exceeded maximum allowable current Possible Causes:  Mechanical obstruction in the jet box area  Limit switches not set up accurately ...
  • Page 76 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 77 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 5.2.3.3. No data from ECU Error Description: The JDU cannot establish communication with ECU. Possible Causes:  Cable not plugged into the JDU  Wiring defect  ECU defect (possible internal fuse blown) Pilot action required: ...
  • Page 78 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 79: Performance

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 6. Performance 6.1. Engine performance Error! Reference source not found. 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 Date of issue: 31.03.2016...

  • Page 80: Flight Performance

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 6.2. Flight performance 6.2.1. Climb performance and range Table 6-1 gives the optimum IAS to climb for best range at empty weight with the following assumptions:  Usable fuel quantity (41.6 litres / 10.5 US gal) ...

  • Page 81: Table 6-1: Range From Saw Tooth Profile For Different Rpm Settings

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Pressure Climb Climb Glide Total Altitude Rate Dist Dist Dist (Km/h) (m/s) (km) (km) (km) 1000 1000 85 000 2000 2000 3000 1000 1000 90 000 2000 2000 3000 1000 1000...

  • Page 82: Table 6-2: Range From Saw Tooth Profile For Different Rpm Settings

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Pressure Indicated Climb Climb Glide Total Altitude Airspeed Rate Dist. Dist. Dist. (ft) (kts) (kts) (NM) (NM) (NM) 3300 3400 85 000 6700 6700 10000 3300 3300 90 000 6700 6700...

  • Page 83: Figure 6-2: Expected Saw-Tooth Profile Flown Between 2000 And 3000 Meters At 95000 Rpm

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Figure 6-2: Expected saw-tooth profile flown between 2000 and 3000 meters at 95000 RPM Date of issue: 31.03.2016 Page 6–6 Accepted section...

  • Page 84: Table 6-3: Endurance & Range Vs Rpm In Level Flight

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 6.2.2. Cruise performance Table 6-3 gives the expected range and endurance in level flight for RPM settings at different altitudes and a weight from 480 kg (incl. fuel). Table 6-3 is based on ISA conditions and maximum fuel (40 litres / 10.5 US gal).

  • Page 85: System Description

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 86: Figure 7-2: Kinematics System

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 mounted. Error! Reference source not found. shows the pylon in the fully extended (raised) position. 7.1.2. Main doors The opening and closing of the jet main doors is operated by a cam driven bellcrank assembly.

  • Page 87: Figure 7-3: Front Doors Kinematics

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 7.1.3. Front door The front cover plate finger door is also attached to the cam system and is opened and closed by a pushrod and spring attached to the cam. Error! Reference source not found. shows the pylon in the extended (raised) position with the finger door opened (downwards movement into the engine bay).
  • Page 88 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 7.1.4. Fuel system Fuel is contained in three interconnected composite tanks located inside the fuselage. No possibility exists to select fuel supply from the different tanks. Fuel management is facilitated by components on the fuel panel, positioned above the left main fuel tank.
  • Page 89 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Refueling is accomplished by means of an external pump connected by a quick connector on the left hand side of the engine box (Refer to section 4 for more detail on refueling and de-fueling). This same connection can be used to drain the fuel from the tanks.

  • Page 90: Figure 7-5: Fuel System Layout Diagram

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Figure 7-5: Fuel system layout diagram Date of issue: 31.03.2016 Page 7–6 Accepted section...

  • Page 91: Electrical System

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 a additional connector that is plugged into the jet sustainer electrical system.
  • Page 92 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Figure 7-6: Schematic layout of electrical system Date of issue: 31.03.2016 Page 7–8 Accepted section...

  • Page 93: Settings

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 ...

  • Page 94: Fuel And Battery Levels

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 95: Altitude And Outside Air Temperature

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 8.2. Altitude and Outside air temperature This setting allows the pilot to adjust operating altitude OAT. Engine performance enhanced in the future using these parameters. Optionally, the JDU may future linked...

  • Page 96: Password

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 NOTE: The JDU only displays a limited number of logged entries. The complete logbook is saved on the ECU, and accessible by approved maintenance personnel using the Turbine Tool software. 8.4.

  • Page 97: Configuration

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 8.5. Configuration The configuration menu consist 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 98 In case the fuel probe cannot read the full fuel range, the “Max Fuel probe level” can be adjusted. This is typically the scenario in the JS1 where the fuel level in the top tank is not measured. If the fuel level exceeds the maximum level measurable by the probe, the JDU will display the fuel level entered manually in the “Settings”...
  • Page 99 JS1 Jet Sustainer Flight Manual Supplement - Issue 1 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 100: Daily Inspection

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 9. Daily inspection Daily inspection of the Jet System should be done as part of the daily inspection of the glider. Daily inspection checklist Jet Box Check below the glider for any signs of fuel leaks...

  • Page 101: Table 9-1: Daily Inspection Checklist

    JS1 Jet Sustainer Flight Manual Supplement - Issue 1 Daily inspection checklist Cycle emergency fuel shutoff located in the cockpit to test for smooth operation Operation Compare EGT with ambient air temperature (when OAT is available) Manually spin compressor blade and verify positive RPM indication...

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