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Schempp-Hirth Flugzeugbau Ventus-3M Maintenance Manual

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SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
M A I N T E N A N C E M A N U A L
Model:
Edition:
Sales description:
Serial-No.:
Registr. No.:
Date of Issue:
Manufacturer:
Owner:
Approval of translation has been done by best knowledge und judgement.
In any case the original text in German language is authoritative.
for Powered Sailplane
V e n t u s – 3 M
According to Modification bulletin A627-1
P e r f o r m a n c e
Ventus-3M neo
F e b r u a r y 2 0 2 1
Schempp-Hirth Flugzeugbau GmbH
Krebenstraße 25
73230 Kirchheim/Teck
Germany

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July 27, 2025

What is the required force on the gas strut for Ventus B aircraft please

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Summary of Contents for Schempp-Hirth Flugzeugbau Ventus-3M

  • Page 1 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK M A I N T E N A N C E M A N U A L for Powered Sailplane V e n t u s – 3 M Model: According to Modification bulletin A627-1 Edition:...
  • Page 2 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Record of revisions Any revision of the present manual must be recorded in the following table. The revision will be indicated by a black vertical line in the left had margin. This marking highlights the last revision on each page.
  • Page 3 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Erfassung der Berichtigungen/Records of revisions Bezug Reference ÄB / MB: Änderungsblatt – Modification Bulletin TM / TN: Technische Mitteilung – Technical Note Hinweis: Nicht eingefügte Berichtigungen sind zu streichen. Das Verzeichnis der Seiten ist gegebenenfalls handschriftlich zu aktualisieren.
  • Page 4 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 0.1.1 February 2021 0.1.2 0.2.1 0.2.2 0.2.3 0.2.4 0.2.5 0.2.6 0.2.7 0.2.8 0.2.9 0.3.1...
  • Page 5 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 1.0.1 February 2021 1.1.1 February 2021 1.2.1 February 2021 1.2.2 February 2021 1.2.3 February 2021 1.3.1...
  • Page 6 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 3.0.1 February 2021 3.1.1 February 2021 3.1.2 February 2021 3.1.3 February 2021 3.2.1 February 2021 3.2.2...
  • Page 7 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 5.0.1 February 2021 5.1.1 February 2021 5.2.1 February 2021 5.3.1 February 2021 5.4.1 February 2021 5.5.1...
  • Page 8 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 5.13.1 February 2021 5.14.1.1 February 2021 5.14.2.1 February 2021 5.14.2.2 February 2021 5.14.2.3 February 2021 5.14.2.4...
  • Page 9 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 6.0.1 February 2021 6.1.1 February 2021 6.2.1 February 2021 6.2.2 February 2021 6.3.1 February 2021 6.4.1...
  • Page 10 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference 8.0.1 February 2021 8.1.1 February 2021 8.1.2 February 2021 8.1.3 February 2021 8.1.4 February 2021 8.1.5...
  • Page 11 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference APPENDIX DIAGRAM 1 February 2021 DIAGRAM 2 February 2021 DIAGRAM 3 February 2021...
  • Page 12 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Verzeichnis der Seiten/List of effective pages Abschnitt Seite Ausgabedatum Bezug Affected section Affected pages Date of issue Reference APPENDIX REP. 1 February 2021 REP. 2 February 2021 REP. 3 February 2021 REP.

  • Page 13: Table Of Contents

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Table of contents Description of components and systems Airframe Control system Power plant system Electrical system Oxygen system (optional) Rigging data General Adjustment data and control surface deflections Weights and hinge moments of control surfaces...
  • Page 14 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instructions for assembly and maintenance work Rigging and derigging Rudder - removal and re-installation Adjustment of fin tank dump valve (optional) Nose tow release - removal and re-installation C/G tow release - removal and re-installation (optional)
  • Page 15 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Logging of service time and take-offs List of special tools Spare part list Diagrams: Fuselage controls Rudder control in the fuselage Wing controls Undercarriage with retracting linkage and hydraulic disk brake Inspection opening in the fin Water ballast system –...

  • Page 16: Description Of Components And Systems

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 1 Description of components and systems Airframe Control system Power plant system Electrical system Oxygen system (optional) February 2021 Revision – 1.0.1...

  • Page 17: Airframe

    Further descriptions are provided in sections 1.4, 1.5, and 7 of the Flight Manual. Airframe The Ventus-3M is a single-seat high performance self-launching powered sailplane, made of fiber reinforced plastic (FRP), featuring wing flaps and a T-tail with fixed horizontal stabilizer and elevator.

  • Page 18: Control System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Control system Elevator control system Steel push-rods connect the control stick to an aluminum bell crank in the fin. Another steel push-rod connects this bell crank to the steel elevator actuating bracket (also serving as the rear mount for the horizontal tailplane) at the top of the fin –...
  • Page 19 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Control system (continued) Aileron control system Steel push-pull tubes lead from the control stick via bell-cranks to the funnels of the automatic hook-up system on either side of the fuselage, see diagram 1. Inside each wing panel, steel push-pull tubes lead from the angular levers of the automatic hook-up system at the root rib to the actuating levers for the ailerons.
  • Page 20 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Control system (continued) Undercarriage The actuation of the undercarriage is controlled by an actuating lever, which is guided in a gate. The actuating lever is connected to the undercarriage actuating arm by means of push-pull tubes. A gas compression spring on the undercarriage linkage assists in retracting the wheel.

  • Page 21: Power Plant System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Power plant system A description of the power plant system is provided in the Flight Manual on page 1.4 and in section 7.10 For descriptions and specifications of engine and propeller refer to the manual(s) provided by their manufacturers –...

  • Page 22: Electrical System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Electrical system For a description of the electrical system refer to section 7.12 of the Flight Manual. For the wiring diagram see diagram 10 and 11. February 2021 Revision – 1.4.1...

  • Page 23: Oxygen System (Optional)

    The altered loading plan must be entered in the weight and balance log-sheet – see page 6.2 of the flight manual Ventus-3M. For a list of currently approved oxygen regulators refer to section 7.2.
  • Page 24 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 2 Rigging data General Adjustment data and control surface deflections Weights and hinge moments of control surfaces Permissible play in the control circuits Permissible play in the wing attachment fitting...

  • Page 25: Rigging Data

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Rigging data General In the following section the most important adjustment data are given to ensure a safe operation of the powered sailplane Adjustment data and control surface deflections are shown on the overview on the next page.

  • Page 26: Adjustment Data And Control Surface Deflections

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Adjustment data and control surface deflections February 2021 Revision – 2.2.1...

  • Page 27: Weights And Hinge Moments Of Control Surfaces

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weights and hinge moments of control surfaces After repair work or repainting, the hinge moment of a component and its weight must be in the following ranges: Residual Component Weight moment 5.00 –...
  • Page 28 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weights and hinge moments of control surfaces (continued) Fitting additional mass balance weights to the control surfaces For all control surfaces the balance weight (maximum length 0.5 m (19.7in) for each piece) should be bonded, if necessary, to the leading edge forward of the hinge line, or to the pre-molded CFRP-part and additionally secured with at least 2 securing elements per piece –...
  • Page 29 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weights and hinge moments of control surfaces (continued) Rudder with steerable tail wheel: February 2021 Revision – 2.3.3...
  • Page 30 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weights and hinge moments of control surfaces (continued) Determination of the residual moment To determine the static moments of the control surfaces, these should be removed from the sailplane. The control surfaces are to be supported without friction at their hinge line.

  • Page 31: Permissible Play In The Control Circuits

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Permissible play in the control circuits With the control stick fixed in the neutral position, the play at the control surfaces must not exceed the following values: Control surface Play Distance behind hinge axis Inboard wing panel, ±...

  • Page 32: Permissible Play In The Wing Attachment Fitting

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Permissible play in the wing attachment fittings Play between fuselage and wing (movement back and forth at wing tip) can occur through wear in the shims on the wing locating pins.

  • Page 33: Permissible Play On The Tail-Plane Attachment Fitting

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Permissible play in the tail-plane attachment fitting A certain amount of softness in the tailplane connection is acceptable, i.e. with a small amount of hand force on the tailplane tip, it can be moved up and down by 1 to 2 cm (0.39 - 0.79 in).

  • Page 34: Inspections

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 3 Inspections Prescribed inspections of airframe Annual inspection Special inspections February 2021 Revision – 3.0.1...
  • Page 35 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Inspections Remark: To ensure the airworthiness of the sailplane the following inspections and maintenance should be conducted according section 3, 4 and 9 of the Maintenance Manual. Prescribed inspections of the airframe Tow release mechanism(s) Checks should be carried out in accordance with the “Operating &...
  • Page 36 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Inspections (continued) Control cables Every 200 flying hours and at every annual survey, the rudder cables are to be inspected wherever accessible (see FAA AC 43.13-1B § 7 149) and the point where they feed through the S-shaped guides to the pedals, particularly with the pedals in their extreme positions.
  • Page 37 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Inspections (continued) When replacing control cables, the following cables and parts must be used: Designa- Usage Thimble Oval Press tool Press Number tion sleeves (Nico- tool slot (Nico- press) (Nico- strokes...

  • Page 38: Annual Inspection

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Annual inspection In the course of the annual inspection the following checks are to be carried out: Note: More detailed information regarding non-scheduled maintenance works can be found in section 5.
  • Page 39 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Annual inspection (continued) General After cleaning the entire aircraft, the following checks and works should be carried out: Check the aircraft externally for damage such as cracks, holes, scratches, buckling and delamination. If the outer layer(s) of a component, constructed as a sandwich, has been damaged, then the inner skin must be checked as well.
  • Page 40 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Annual inspection (continued) Harness o The harness straps should be checked regularly for damage and stains. o The metal fittings or the harness should be checked regularly for corrosion. Undercarriage o Check that the main wheel axle runs true, that no u/c struts are bent or damaged and that their mountings on the centre steel tube frame are not damaged.
  • Page 41 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Annual inspection (continued) Water ballast tank in the wing o Check the dump vents for symmetrical opening left and right and for smooth, easy activation o Check the tightness of the dump valves...
  • Page 42 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Annual inspection (continued) Horizontal tail-plane and vertical tail surface o Clean and lubricate all accessible control hinges and rudder rests. o Clean and lubricate suspension fittings. Wing (see diagram 3) o Lubricate all accessible connecting points in the aileron and airbrake control circuits and also their hinges.

  • Page 43: Special Inspections

    A copy of the inspection report has to be sent to the airworthiness office at Schempp-Hirth Flugzeugbau GmbH. Only once a written confirmation of Schempp-Hirth, Flugzeugbau GmbH is received that the above mentioned inspection report was obtained, the permissible service life time may be increased.
  • Page 44 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 4 Maintenenace General care Aiframe maintenance Power plant maintenance Propeller Engine Power plant system Damage Accessibility for maintenance Securing of bolted connections February 2021 Revision – 4.0.1...

  • Page 45: Maintenance

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Maintenance General care Painting The painted surfaces of fuselage, wing and tail should be cleaned after every flight with clear water for preserving the performances of the glider. It is also recommended to clean the sailplane prior the first flight after a longer time, for example after the winter.

  • Page 46: Airframe Maintenance

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Airframe maintenance Under normal operating conditions and depending of operational time no airframe maintenance work is required between the annual inspections (see section 3). Re-Greasing is only required if needed (controls heavy to operate), on those places where plan bearings are used (e.g.

  • Page 47: Power Plant Maintenance

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Power plant maintenance Propeller For information about maintenance of the propeller refer to the propeller manual, see section 9. Important note: For permissible operating times, mandatory regular inspections and special inspections refer to the propeller manual (see section 9).
  • Page 48 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Power plant maintenance (continued) Power plant system Check of V-belt tension After the installation of a new V-belt set shorter inspection intervals for checking the V-belt tension have to be observed due to increased wear during the running-...
  • Page 49 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Power plant maintenance (continued) Power plant system (continued) Parts of the power plant system with limited operating life Replacement after first installation of part Description Remark Engine Calendar time operating time...

  • Page 50: Damage

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Damage General Check for any small sign of a change in the condition of the aircraft, such as cracks in the surface, holes, delamination in the CFRP (GFRP) structure etc. If there is any uncertainty regarding the significance of damage discovered, this should always be inspected by a qualified expert.
  • Page 51 A damage of the protection of the engine compartment must be repaired. The protection is made by various layers. All necessary materials and information on the procedure to apply them must be obtained from Schempp-Hirth Flugzeugbau GmbH. February 2021 Revision –...

  • Page 52: Accessibility For Maintenance

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Accessibility for maintenance Following inspection accesses exist or can be created later. Wing control system The flaperon drives are accessible through inspection openings on the lower side of the wing. The airbrakes drives are accessible through the airbrake box when the airbrakes are extended.
  • Page 53 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Accessibility for maintenance (continued) Power plant The front part of the spindle drive for extending and retracting the power plant is located in the baggage compartment. The rear part of the spindle drive and the power plant itself are accessible with the engine compartment doors open.

  • Page 54: Securing Of Bolted Connections

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Securing of bolted connections If not specified otherwise at the appropriate places in the Maintenance Manual, the following methods of securing bolt connections against unintentional loosening have to be used: Tightening torque for bolt connections...
  • Page 55 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Securing of bolted connections (continued) Tightening torque for bolt connections (continued) Tightening Designation of connection Source torque Bolt connection of the fuel lines type Manufacturer 8-13Nm G-Line XF 811 information These bolt connections in the fuel lines must not be secured with threadlocking adhesive, as the adhesive can enter the fuel system.
  • Page 56 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Securing of bolted connections (continued) Screw locking adhesives If no other information is given in the applicable maintenance manuals,f or securing bolt connections medium strength screw locking adhesives (Loctite 243) is used.

  • Page 57: Instructions For Assembly And Maintenance Work

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 5 Instructions for assembly and maintenance work Rigging and derigging Rudder, removal and re-installation Adjustment of fin tank dump valve (optional) Nose tow release, removal and re-installation C/G tow release, removal and re-installation (optional)

  • Page 58: Rigging And Derigging

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instructions for assembly and maintenance work Rigging and Derigging For instructions respective descriptions for rigging and derigging of the aircraft see Flight Manual – section 4.2. February 2021 Revision – 5.1.1...

  • Page 59: Rudder - Removal And Reinstallation

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Rudder – removal and reinstallation Removal of the rudder Rudder with steerable tail wheel: o Deflect the rudder fully to the right and to the left and disconnect the control cables from the drive bracket.

  • Page 60: Adjustment Of Fin Tank Dump Valve (Optional)

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Adjustment of fin tank dump valve (optional) For inspection of the fin tank dump valve the rudder has to be removed – see section 5.2. Please refer to diagram 7 for all further steps.

  • Page 61: Nose Tow Release - Removal And Re-Installation

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Nose tow release – removal and re-installation The nose tow release is located in the fuselage nose cone. It must be checked regularly for damage and also cleaned and greased. Removal of the nose tow release o Remove the screws from the nose access panel;...

  • Page 62: C/G Tow Release - Removal And Re-Installation (Optional)

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL C/G tow release – removal and re-installation (optional) Being situated in the underside of the fuselage, the c/g tow release mechanism is vulnerable to the ingress of dirt. It must therefore be checked regularly for damage and also cleaned and greased.

  • Page 63: Replacing The Wing Locating Bearing Bushings

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Replacing the wing bearing bushings The inboard wing panels locate in four (4) bush bearings on the fuselage. These bearings should be checked for damage after heavy landings. The procedure for replacing them – should it become necessary – is as follows: Tap out the whole bush from the other side with a metal bar of approx.

  • Page 64: Adjusting The Play In The Wing Connection

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Adjusting the play in the wing connection Tangential play (fore and aft movement) at the attachment fittings can be diminished by adding further shims of a thickness between 0.3 mm and 0.5 mm (0.01 to 0.02 in.) with an internal diameter of 13.95 mm (0.55 in.) for the inner wing...

  • Page 65: Adjusting The Play In The Tailplane Connection

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Adjusting the play in the tailplane connection If an excessive vertical play is found at the tips of the horizontal stabilizer, then the adjustable bushings of the elevator actuating bracket should be tightened using a 4 mm Allen key such that the tail-plane will just slide onto its locating pins.

  • Page 66: Main Wheel - Removal And Re-Installation

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Main wheel – removal and re-installation Removal of the main wheel To remove the main wheel first disassemble the brake caliper - see section 5.10. o Next remove cotter pin from castle of the wheel axle.

  • Page 67: Maintenance Work On The Hydraulic Wheel Brake System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.10 Maintenance work on the hydraulic wheel brake system Check of the hydraulic wheel brake system in case of reduced effectiveness Check the following when the effectiveness of the wheel brake is reduced: o Check the thickness of the brake pads –...
  • Page 68 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.10 Maintenance work on the hydraulic wheel brake system (continued) Reinstallation of the brake caliper o Push on the brake caliper, align the brake pad with the support plate and pressure plate to it.
  • Page 69 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.10 Maintenance work on the hydraulic wheel brake system (continued) Observe the inflow of the brake fluid in the reservoir. Initially, many and especially large air bubbles will occur. These air bubbles will become smaller and less frequent with time.

  • Page 70: 5.11 Manual And Automatic System Of The Propeller Brake

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11 Manual and automatic system of the propeller brake 5.11.1 Description The propeller is decelerated and hold in proper retracting position by a mechanical propeller brake and a propeller stopper. The position of the propeller is detected by contact-free proximity switches.
  • Page 71 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.2 Basic setting of propeller brake lever After replacement / modification of the guiding slot for the brake lever, the mounting of the brake lever, the brake drum or other essential components the...
  • Page 72 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.3 Adjustment of manual propeller brake a) Establish the initial position of the brake lever (position brake released) according to section 5.11.2. in the released state the handle for the manual propeller break in the cockpit must not touch the Bowden outer.
  • Page 73 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.4 Adjustment of brake servo of automatic propeller brake a) After the adjustment / check of the manual propeller brake according to section 5.11.3, re-establish the initial position of the brake lever according to section 5.11.2 (position brake released).
  • Page 74 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.5 Basis setting of proximity switches for automatic propeller brake a) Determination of propeller position: The area of the propeller position for the automatic retraction of the powerplant is defined by two proximity switches (P1 and P2).
  • Page 75 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.5 Basic setting of proximity switches for automatic propeller brake (continued) b) Functional test of proximity switches: The proximity switches are equipped with an LED at the bottom of their housing where the connection cable emerges from the housing. Both proximity switches are connected so that this LED is off when an electrically conductive object approaches the upper end of the proximity switch.
  • Page 76 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.5 Basic setting of proximity switches for automatic propeller brake (continued) d) Basic setting of the proximity switches: To adjust the distance of the proximity switches, the propeller has to be turned into the retracting position (center position) by hand.
  • Page 77 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.6 Adjusting the operating range of proximity switches for the automatic propeller brake The procedure for adjusting the proximity switches of the automatic propeller brake is described below: It is recommended to determine the existing front and rear limit of the retracting area first before making any changes to the adjustment of the proximity switches.
  • Page 78 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.6 Adjusting the operating range of proximity switches for the automatic propeller brake (continued) Determination of the rear limit of the retracting area:  Move the propeller slowly by hand above the front limit of the retracting area (second proximity switch P2 engages, LED lights up).
  • Page 79 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.6 Adjusting the operating range of proximity switches for the automatic propeller brake (continued) c) Correction of the operating range of the proximity switches Within the limits of the operating range during automatic operation both proximity switches for the propeller position are engaged (both LEDs light up).
  • Page 80 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.6 Adjusting the operating range of proximity switches for the automatic propeller brake (continued) c) Correction of the operating range of the proximity switches (continued) 2) Rear limit of operating range (distance between propeller leading edge to...
  • Page 81 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.6 Adjusting the operating range of proximity switches for the automatic propeller brake (continued) d) Completion of adjusting the operating range of the proximity switches After completing the adjustments, tighten the screw connection of both proximity switches and of their attachment.
  • Page 82 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.7 Checking the brake efficiency of the automatic propeller brake The brake efficiency of the automatic propeller brake can be checked on the ground according to the following procedure: a) Requirements: ...
  • Page 83 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.7 Checking the brake efficiency of the automatic propeller brake (continued) g) If the minimum force is not met, the following points have to be checked first before any further action is taken: ...
  • Page 84 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.8 Maintenenace of propeller brake system a) Readjustment of manual propeller brake  If the specifications for the basic adjustment given in section 5.11.2 are met, the readjusting of the manual propeller brake is not required.
  • Page 85 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.11.9 Propeller stopper a) Description The propeller stopper is attached to the propeller pylon on the left-hand side in the direction of flight and is actuated by a electro-magnetic servo via a Bowden cable.

  • Page 86: 5.12 Pylon Arresting Wire For The Power Plant

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.12 Pylon arresting wire for the power plant 5.12.1 Replacing the pylon arresting wire Disassemble arresting wire from the propeller pylon. Remove bolts attaching cable guide to rear wall of engine compartment.
  • Page 87 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.12.1 Replacing the pylon arresting wire (continued) Reinstall cable guide for the arresting wire in the engine compartment and connect the arresting wire to the propeller pylon as follows: Extend the propeller pylon completely using the Manual Operation switch.
  • Page 88 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.12.2 Installation of arresting wire As arresting wire for the power plant a closed wire rope is used (see section 3.1). If the mounting bolt of the arresting wire at the propeller pylon is loosened and reinstalled afterwards, it must be ensured that after the installation to the propeller hub the arresting wire is not twisted compared to the loosened state.
  • Page 89 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.13 Adjustment of propeller pylon limit switches and engine compartment doors Configuration „Power plant extended“: (Limit switch mounted to spindle drive) Extend the power plant until the arresting wire is tight.

  • Page 90: Removal And Reinstallation Of Fuel Tanks

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14 Removal and reinstallation of fuel tanks 5.14.1 Removal and reinstallation of the fuselage fuel tank For the removal of the fuselage fuel tank fuel lines, that are only accessible through an opening in the front wall of the engine compartment, have to be disconnected.
  • Page 91 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14 Removal and reinstallation of fuel tanks (continued) 5.14.2 Removal of the wing fuel tank model GFS-FKT2: (see also sketch on Section 5.14.2.4) 1. At the root rib:  Remove couplings including extension sleeves from the fittings of the fuel and the vent line.
  • Page 92 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14 Removal and reinstallation of fuel tanks (continued) 5.14.2 Removal of the wing fuel tank model GFS-FKT2: (continued) (see also sketch on section 5.14.2.4) 4. Removal of wing fuel tank: ...
  • Page 93 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14 Removal and reinstallation of fuel tanks (continued) 5.14.2 Removal of the wing fuel tank model GFS-FKT2: (continued) (see also sketch on section 5.14.2.4) 5.2 If the wing fuel tank will be reinstalled before the next operation of the aircraft: ...
  • Page 94 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14 Removal and reinstallation of fuel tanks (continued) February 2021 Revision – 5.14.2.4...
  • Page 95 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14.3 Installation of fuel tank model GFS-FKT2: (see also sketch on page 5.14.2.4) Important note: The wing fuel tanks have to be installed into the wings with the fittings pointing upwards relative to the normal flight attitude of the wing!
  • Page 96 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.14.3 Installation of fuel tank model GFS-FKT2 (continued): (see also sketch on section 5.14.2.4) Installation of fuel and vent lines: - Slide the sleeve nuts onto the hose lines to the tank. Then attach the respective connector to the fuel and the vent line.
  • Page 97 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.15 Power plant – removal and reinstallation Removal of the power plant Extend power plant Dismantle engine bay doors. Disconnect tensile spring for the exhaust muffler at the lower end. Remove axis (bolt) at the hinge between exhaust manifold and muffler.
  • Page 98 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.15 Power plant – removal and reinstallation (continued) Removal of the power plant (continued) If the aircraft shall be operated with engine removed the following measures have to be accomplished before:...
  • Page 99 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.15 Power plant – removal and reinstallation (continued) Reinstallation of the power plant For the reinstallation of the power plant, reverse the steps for the removal of the power plant. Important Note:...
  • Page 100 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.15 Power plant – removal and reinstallation (continued) Reinstallation of the power plant (continued) Installation of propeller pylon mounting bolts: February 2021 Revision – 5.15.4...

  • Page 101: Removal And Re-Installation Of V-Belt Set

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.16 Removal and installation of the V-belt set General Do not handle the V-belt with brute force! Installation with tools like screw driver or crowbar cause external and internal damage to the V-belt. This strongly affects the service life of the drive belt.
  • Page 102 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.16 Removal and installation of the V-belt set (continued) Removal of the V-belt set Remove propeller. In order to avoid damage to the two proximity switches for the propeller positioning during the further assembly operation, it is recommended to remove the complete holder for the proximity switches.
  • Page 103 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.16 Removal and installation of the V-belt set (continued) Installation of V-belt set For the installation of the V-belt set reverse the steps for removal: Route the V-belt set around the small (lower) drive belt pulley.
  • Page 104 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17 Measuring and adjusting the V-belt tension 5.17.1 Measuring the V-belt tension General: For safe operation of the engine and the transmission gear the drive belt tension always has to be within the permissible range.
  • Page 105 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.1 Measuring the V-belt tension (continued) Procedure 1: Investigation of the V-belt tension by deformation measurement Requirements for the investigation The device for measuring the V-belt tension must be available (s.

  • Page 106: Measuring V-Belt Tension

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.1 Measuring V-belt tension (continued) Procedure 2: Investigation of the V-belt tension with use of a frequency meter Requirements for the investigation - Frequency meter must be available (s. section 11) - Powerplant must have a temperature of about room temperature (18-23°C)
  • Page 107 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.1 Measuring the V-belt tension (continued) Procedure 2: Investigation of the V-belt tension with use of a frequency meter (continued) Averaging the natural frequency for a complete set of single V-belts The natural frequency of every single V-belts determined according to 4) may not deviate more than ±...
  • Page 108 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.1 Measuring the V-belt tension (continued) Procedure 2: Investigation of the V-belt tension with use of a frequency meter (continued) V-belt natural frequency measurement report (Example) Ventus-3M, serial no.: Date: Registration...
  • Page 109 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.2 Adjustment of V-belt tension General: The tension of the V-belts may be adjusted by turning the eccentric hub of the large belt pulley (propeller hub). To indicate the position of the eccentric hub the rear of the hub shows the following...
  • Page 110 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.2 Adjustment of the V-belt tension (continued) Increase of the V-belt tension To increase the V-belt tension proceed as follows: Remove the bolt for the arresting wire from the rear side of the propeller hub.
  • Page 111 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.2 Adjustment of the V-belt tension (continued) Decrease of the V-belt tension To reduce the V-belt tension proceed as follows: 1. Remove the bolt for the arresting wire from the rear side of the propeller hub.
  • Page 112 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.17.2 Adjustment of the V-belt tension (continued) Use of the belt adjusting disc February 2021 Revision – 5.17.2.4...

  • Page 113: Spindle Drive Overload Safety Device

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.18 Spindle drive overload safety device When extending the power plant, the telescopic tube of the spindle drive is retracted until the latter is cut off by the limit switch “prop extended”.

  • Page 114: 5.19 Removal And Filling The Coolant Liquid

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.19 Removal and filling the coolant liquid Removal of the coolant liquid: Fully extend the power plant, engine must be cold. Remove transparent hose for visual indication of the coolant level from the filler cap and plug the hose.
  • Page 115 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.19 Removal and filling the coolant liquid (continued) Filling the coolant liquid: Coolant liquid: Approximately 1,8 litre (0.476 US Gal. / 0.396 UK Gal.) of coolant liquid is required. The coolant liquid used is a mixture from antifreeze fluid and water:...
  • Page 116 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.19 Removal and filling the coolant liquid (continued) Filling the coolant liquid: (continued) Pull circuit breaker for the spindle drive. To run the water pump lift the red protection cap of the emergency switch (permanent operation of the water pump!) Check the visible amount of coolant liquid.

  • Page 117: Adjustment Of The Exhaust System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.20 Adjustment of the exhaust system Description: During extension and retraction of the power plant the exhaust system is folded at a hinge located between the exhaust manifold and exhaust muffler. The suspension rods of the exhaust muffler are spring-loaded bedded for adjustment purposes and to reduce the vibration loading on the system.
  • Page 118 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.20 Adjustment of the exhaust system (continued) Basic adjustment of the exhaust muffler: First the fully extended position of the power plant must be established correctly before the adjustment of the exhaust muffler can be estimated. For this purpose, first check and if necessary, correct the adjustment of the arresting wire and the limit switch for the extended position according to the instructions from section 5.12.and...
  • Page 119 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5.20 Adjustment of the exhaust system (continued) Basic adjustment of the exhaust muffler: (continued) The exhaust muffler is adjusted correctly if a force in the range from F = 10 bis 30N (2.248 to 6.744 lb f) is just sufficient to set the exhaust muffler in upward motion with...
  • Page 120 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 6 Determination of the center of gravity and payload Introduction Weighing procedure Weight and balance report Empty mass, empty mass c/g position Glossary Payload Mass – c/g range Operation with power plant removed February 2021 Revision –...

  • Page 121: Determination Of The Center Of Gravity And Payload

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Determination of the center of gravity and payload Introduction This section contains procedures for determining the aircraft’s empty weight (mass) and empty weight c/g position. Furthermore, it provides procedures for the determination of the c/g position in flight and the permitted seat load range.
  • Page 122 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weigthing procedure To determine the CG position of the aircraft, the main wheel and tail wheel of the aircraft are placed on a scale and under-built to achieve the aircraft position specified below.
  • Page 123 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weigthing procedure (continued) Weighing Data: Datum plane: Wing leading edge at root rib Aircraft attitude: wedge shaped block 100 : 4.4 Placed on the rear top fuselage, horizontal along its upper edge Distance main wheel: 52 mm (2.05 in.)

  • Page 124: Weight And Balance Report

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Weight and balance report It is necessary to establish the empty mass c/g position of the aircraft on the following occasions: o After installing additional equipment o After repainting o After repairs o After any modifications which could possibly affect the weight (mass) of the aircraft.

  • Page 125: Empty Mass, Empty Mass C/G Position

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Empty mass, empty mass c/g position Empty mass The empty mass of the aircraft is: o without pilot and without removable trim ballast o without parachute o without water ballast o without fuel...
  • Page 126 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Empty mass, empty mass c/g position (continued) Empty mass center of gravity It must always be ensured that the empty mass center of gravity remains within the permitted range. If necessary, permanently installed compensating ballast weights must be added.
  • Page 127 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Empty mass, empty mass c/g position (continued) Table for steerable tail wheel (with a = 52 mm/2.05 in. BE, b = 4366 mm/171.9 in.): Empty mass Load on steerable tail wheel with a minimum seat load of 154.3...
  • Page 128 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Empty mass, empty mass c/g position (continued) Empty mass c/g range (power plant installed) February 2021 Revision – 6.4.4...
  • Page 129 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Empty mass, empty mass c/g position (continued) Empty mass c/g range (power plant removed) February 2021 Revision – 6.4.5...

  • Page 130: Glossary

    The maximum permitted Take-off and landing mass without water Note: ballast is an operating limitation of the Ventus-3M which limits the payload in the fuselage without consideration of water ballast. That means it doesn’t matter if you fly with or without water ballast.

  • Page 131: Payload

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Payload The current date of the weighing must be entered in the “weight and balance log sheet” of the flight manual, section 6.2. The maximum and the minimum load on the pilot’s seat must also be entered on the payload placard in the cockpit. The following shows how the payload data are determined with the data of the weighing and the information given in the flight manual, section 2.6.
  • Page 132 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Payload (continued) Minimum permitted seat load (Pilot and parachute) For the determination of the “minimum permitted seat load” it must be ensured, that o the lowest permitted flight mass is not undershot o and the permitted empty mass c/g range is observed For establishing a „Weight &...

  • Page 133: Mass - C/G Range

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Mass – c/g range If the following operation limits are complied with the aircraft meets the permitted masses and the permitted c/g range: wing span 18 m Power plant installed removed...

  • Page 134: Operation With Power Plant Removed

    To operate the aircraft as pure sailplane or for maintenance the engine and the propeller may be removed with little effort. If the Ventus-3M will be operated with removed power plant, the empty mass position has to be re-determined, a new weight and balance report hast to be established and entered in the weight and balance log sheet in the flight manual, section 6.2.
  • Page 135 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 7 Selection list Safety harness Instruments and other equipment Note for the installation of additional equipment Electrical power supply February 2021 Revision – 7.0.1...

  • Page 136: Selection List

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Selection list Safety harness A four-point symmetrical safety harness is required. The following restraint systems are used: Lap belts Muster Hersteller Kennblatt-Nr. Bagu 5202 Gadringer 40.070/32 4-01-1256 Schroth 40.073/11 Shoulder straps...
  • Page 137 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment Minimum equipment The following instruments are available for the minimum equipment for normal operation of the aircraft (see also section 2.12 of the Flight Manual): Airspeed indicator (minimum range: 50 bis 300 km/h, 27 –...
  • Page 138 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment (continued) Outside air temperature (OAT) indicator (when flying with water ballast) Model Manufacturer Specif.-No. Temperaturmessanlage Störk 01 59 042 TF 00-59K Fernthermometer Kobold 01 59 042 Y-LE-TNF /-20 +60...
  • Page 139 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment (continued) Additional equipment Variometer Manufacturer: Gebr. Winter, Jungingen Model Code Data sheet No. 5 St VL TS 10.230/11 5 St VLM TS 10.230/12 all series 5 St V TS 10.230/13...
  • Page 140 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment (continued) VHF-Transceivers Model Manufacturer Data-Sheet No. FSG 40 S W. Dittel GmbH 10.911/45 FSG 50 W. Dittel GmbH 10.911/71 FSG 60 W. Dittel GmbH 10.911/72 FSG 70 W.
  • Page 141 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment (continued) Emergency locator transmitter Model Manufacturer Data sheet No. Mar Tech Division EB-2B (CD) Eagle Dayton Aircraft 10.915/2 Products, Inc. ELT 10 Narco Avionics 10.915/3 ELT 8.1 Dorne &...
  • Page 142 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Instruments and other equipment (continued) Transponder Mode S Model Manufacturer Data sheet No. BXP 6401-1-(01) Becker EASA.21O.322 BXP 6401-2-(01) Becker EASA.21O.322 AM 6400-1-(01) Becker EASA.21O.322 Address modul BE 6400-01-(01) Becker ETSO-C88a...

  • Page 143: Note For The Installation Of Additional Equipment

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Note for the installation of additional equipment*: Additional equipment as listed in section 7.2 and further additional equipment* can be installed under the following requirements: o It must be ensured that the equipment in itself or its effect upon the airplane doesn´t constitute a hazard to safe operation.

  • Page 144: Electrical Power Supply

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Electrical power supply For the electrical power supply the following battery-types might be used: a) Engine Battery For the engine battery, that supplies power to the power plant and eventually to the avionic too (see diagram 10.2, Pos.
  • Page 145 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Electrical power supply (continued) b) Avionics batteries For the optional avionics batteries (see diagram 10.1, position 2a to 2c) the following battery types are available: (i) Installation with battery mount on the undercarriage bay, see Flight Manual page 7.12.4 position B or other certified installation:...

  • Page 146: Placards And Symbols

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 8 Placards and symbols February 2021 Revision – 8.0.1...
  • Page 147 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Placards and pictograms February 2021 Revision – 8.1.1...
  • Page 148 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.2...
  • Page 149 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.3...
  • Page 150 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.4...
  • Page 151 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.5...
  • Page 152 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.6...
  • Page 153 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.7...
  • Page 154 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.8...
  • Page 155 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – 8.1.9...

  • Page 156: Maintenance Documentation

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 9 Maintenance documentation February 2021 Revision – 9.0.1...
  • Page 157 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Maintenance documentation Note: Additional information about the maintenance can be found in the Flight Manual sections 1.4, 1.5, 4.3 and 7. “Repair Instructions for Sailplanes and Powered Sailplanes constructed of Fiber Reinforced Plastic (FRP), manufactured by Schempp-Hirth, Flugzeugbau GmbH, Kirchheim/Teck”...

  • Page 158: Logging Of Service Time And Take-Offs

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 10 Logging of service time and take-offs 10.1 Airframe and power plant February 2021 Revision – 10.0.1...
  • Page 159 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Logging of service time and take-offs Airframe and power plant The time in service of the aircraft and any take offs are to be entered in it log book. The time in service of the power plant is read off the power plant operating unit and must also be entered in the aircrafts log book.
  • Page 160 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 11 List of special tools Special tools for rigging and de-rigging the glider Special tools for maintenance works February 2021 Revision – 11.0.1...
  • Page 161 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Section 11 List of special tools Designation Art.-Nr. Rigging / Derigging tailplane, water Rigging tool with red ball ballast filler caps and removeable B40-0708 handle ZRB808 winglets Rigging tool with ball handle...

  • Page 162: Spare Part List

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Spare parts list Designation Art.-Nr. Sealing rubber for junction of vertical and horizontal tail L07-929 Refuelling hose with fuel filter L12-0108 Fuel filter cartridge (10µm) for pre-filter of refueling pump L07-1898 SOLO Art-Nr.
  • Page 163 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 1...
  • Page 164 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 2...
  • Page 165 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 3...
  • Page 166 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 4...
  • Page 167 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL Should it become necessary to replace the vertical elevator acuating rod, an additional opening may be cut into the fin on the far side. February 2021 Revision – DIAGRAMM 5...
  • Page 168 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 6.1...
  • Page 169 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 6.2...
  • Page 170 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 7...
  • Page 171 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 8...
  • Page 172 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 9...
  • Page 173 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 10.1...
  • Page 174 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 10.2...

  • Page 175: Wiring Diagram

    GND Anlasser AWG 6 sw Generator Masse2 AWG10 sw AWG14 ws Rumpftankgeber Betankungspumpe Betanken Solargenerator Kommunikation Alternative2 AWG14 ws (Solar Panels) supply switch AWG 18 sw Motorsteuerung trijekt bee (Fuel Level Sensor Fuselage Tank) (Refuelling Pump) (Refueling) AWG14 ws Batt.M (Communication Engine Control system) (alternative2) Generator Masse1 AWG10 sw (47) AWG14 ws Batterie SF Laden GND SF Betanken GND SF AWG14 sw AWG18 ws GND C2 (Charging) GND C2 AWG14 sw GND C1 GND C1 AWG14 sw Alternative1 GND M...
  • Page 176 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL February 2021 Revision – DIAGRAMM 12...

  • Page 177: Check List

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 1. Power plant unit Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign. Replacement Inspector) O Check whether due inspections or...

  • Page 178: Propeller Pylon And Pivoting Mechanism

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 2. Propeller pylon and pivoting mechanism Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign. Replacement Inspector) O Check mounting of propeller pylon in...

  • Page 179: Fuel System

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 3. Fuel system Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign. Replacement Inspector) O Check fuselage tank for external damages...
  • Page 180 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 3. Fuel system (continued) Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign. Replacement Inspector) O Check function.

  • Page 181: Electrical System Power Plant, Engine Test Run

    SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 4. Electrical system power plant, engine test run Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign. Replacement...
  • Page 182 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL CHECK LIST Check List for Ser.-No....Registration ....... Inspection on ....... Engine operation time .......hours 4. Electrical system power plant, engine test run (continued) Findings Maintenance / INSPECTION ITEMS INSPECTION MEASURE (Sign.
  • Page 183 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5. Inspection instructions for flexible wing fuel tanks model GFS-FKT2 The flexible wing fuel tanks model GFS-FKT2 are built from a two.layer design: • The internal bag contains the fuel. •...
  • Page 184 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5. Inspection instructions for flexible wing fuel tanks model HFK-TLF (continued) Pressure test of wing fuel tank: Connect counter piece of the fuel line plug-in-coupling with manometer and rubber bellow. Slowly fill the wing tank with air until the test pressure of 0.1 bar (1.450 psi) is reached.
  • Page 185 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ MAINTENANCE MANUAL 5. Inspection instructions for flexible wing fuel tanks model HFK-TLF (continued) Picture: Checking the wing fuel tank in installed position February 2021 Revision – P-5.3...
  • Page 186 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ REPAIR INSTRUCTIONS Repair Instructions Ventus-3M General Notes Damaged parts of the aircraft must be repaired prior to the next flight. For the repair the instructions of this repair manual are valid. Bigger repairs, exceeding the descriptions of this manual, are only to be conducted by a maintenance facility with appropriate authorization.
  • Page 187 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ REPAIR INSTRUCTIONS Resin systems For repairs only the following resin systems must be used: For AFRP/CFRP/GFRP-components Mixing proportion by Resin Hardener Curing weight Hexion Speciality Chemicals H 285 L 285 H 286 H 287 100 : 40 15 h bei 55°C...
  • Page 188 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ REPAIR INSTRUCTIONS Coatings Surface coating: (Hexion, Stuttgart) UP-gelcoat, white T 35 UP-hardener SF 10 UP-thinner Mixing portions by weight: 100 parts gelcoat T 35 10 parts hardener SF 10 Surface coating: (Paul Mittermayer, Essenbach)
  • Page 189 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ REPAIR INSTRUCTIONS Materials for the repair of CFRP-components Carbon fibre cloth: (Yarn DIN 65184 CC 200 f 3000-F) Cloth 1/1 (warp equal weft) Weight 200 g/m²: e.g. quality: 98140, 98141, CS-Interglas AG, Ulm Sigratex KDL 8003, SGL Carbon Group, Meitingen Style 450, C.
  • Page 190 SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK Ventus-3M neo „Performance“ REPAIR INSTRUCTIONS Construction February 2021 Revision – REP. 5...

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