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Schempp-Hirth Discus B VH-XOT Pilot Handling Manual And Conversion Document

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Darling Downs Soaring Club
Discus B VH-XOT
Serial Number 295
Pilot Handling Guide and Conversion Document
Schempp-Hirth
This Photo
by Unknown
Rev 0
19 July 2022
These notes are a conversion guide only and not a substitute for the Manufacturer's Flight
Manual.

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Summary of Contents for Schempp-Hirth Discus B VH-XOT

  • Page 1 Darling Downs Soaring Club Discus B VH-XOT Serial Number 295 Pilot Handling Guide and Conversion Document Schempp-Hirth This Photo by Unknown Rev 0 19 July 2022 These notes are a conversion guide only and not a substitute for the Manufacturer’s Flight...

  • Page 2: Table Of Contents

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document Contents Pilot responsibilities ..........................3 General notes on conversions ........................ 3 Basic Overview ............................3 The requirements to fly the Discus ......................3 External Features ............................ 3 Limitations ..............................

  • Page 3: Pilot Responsibilities

    Purchase these from the DDSC Bar -see Instrumentation Section for more info. Basic Overview The Discus is a 15m unflapped sailplane constructed of fibreglass manufactured by Schempp-Hirth (Germany). This aircraft is the ‘perfect’ cross country glider, very easy to fly glider with very good performance.

  • Page 4: Limitations

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document Limitations Max permitted speed 135 knots Vra/Va Max rough air and max manoeuvring speed 108 knots Max aerotow speed 91 knots Max airbrake operation speed 135 knots Max All Up Weight (MAUW) with water ballast 525 kg (reference only)

  • Page 5: Daily Inspection Notes

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document The seat back pivot point can be adjusted on the ground only. Tilt the backrest forward retract the right hand pin to relocate The seatback recline cable can also be repositioned on the lefthand side to give the right hand adjustment a whole new range of movement.

  • Page 6: Flight Characteristics

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document compartment behind the pilot’s head in the cockpit. Take care to ensure cover is kept clean as any dirt will scratch the canopy when cover is installed. Wash it if required. Flight Characteristics Controls: All controls are light to the feel and are responsive, especially pitch.

  • Page 7: Circuit And Landing

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document  the thermalling speed is (5+kts) higher (bigger circle)  the glider rear fuselage gets covered in water (then mud after landing) as some always spills on the flare (unless the dump valves are closed) ...

  • Page 8: Instrumentation

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document Instrumentation Figure 1- Instrument panel Batteries  Master switch turns on the battery Up for ON; Down for OFF.  Select either 1, 2 or AUTO. XOT has a BMS (battery management system) such that when the AUTO state is selected, it will manage the batteries in the glider for the pilot.

  • Page 9: B800 Borgelt

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document  You need you own SD card (and ‘special’ USB stick) to operate the OpenVario. This stores your own profile look and feel for OpenVario. o This SD card and USB stick is YOURS and shouldn’t be left in the glider. It would be wise to back up each in case of lose/corruption.

  • Page 10: Undercarriage Warning Buzzer

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document Undercarriage Warning Buzzer  A normally closed micro switch on the undercarriage down position, another on the airbrake locked position is in series with a piezo buzzer ...
  • Page 11 Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document Figure 2- Handbrake applied to trailer 3. Unhitch the trailer from the car using the jockey wheel to lift the trailer front as high as possible. Note the trailer tilt mechanism is u/s and welded up. 4.

  • Page 12: Derigging The Glider And Putting It In The Trailer

    Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document 19. Fit the tailplane, returning the tool to the cockpit pocket. 20. Fit the winglets. 21. Fit the TE probe 22. Secure all fitting in the trailer, using all pins and clips so that they are there when required for the next derig.
  • Page 13 Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document 2. Apply the trailer handbrake (on the tow coupling - ensure it is released again before driving away!!!) 3. Unhitch the trailer from the car using the jockey wheel to lift the trailer front as high as possible.
  • Page 14 Discus VH-XOT - Serial Number 295 - Pilot Handling Guide and Conversion Document 17. Push the wing into the trailer as far as possible, then secure the wing at the front with the R clip 18. Return to the wing bow, adjusting its position to match the locating hole in the floor and bracket on the trailer wall.

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