Grob Astir CS G102 Flight Manual
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Grob Astir CS G102 Flight Manual

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FLIGHT MANUAL G102
The Manual belongs to ASTIR CS
Registration Number:
Manufactured by: Burkhart Grob Flugzeugbau
Owner:
Published: August 1975
This manual should always be kept on board the glider
86874 Tussenhausen - Mattsies
Flugplatz Mindelheim - Mattsies
Telephone: 08268-998-0
e-mail: productsupport@grob-aerospace.de
Germany
Serial Number:

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  • Page 1 FLIGHT MANUAL G102 The Manual belongs to ASTIR CS Registration Number: Serial Number: Manufactured by: Burkhart Grob Flugzeugbau 86874 Tussenhausen - Mattsies Flugplatz Mindelheim - Mattsies Telephone: 08268-998-0 e-mail: productsupport@grob-aerospace.de Germany Owner: Published: August 1975 This manual should always be kept on board the glider...

  • Page 2: List Of Effective Pages

    FLIGHT MANUAL ASTIR CS List of effective pages Chapter Page Date Reference Flight Manual Cover Page 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 Rev. 9 28. Nov. 2005...

  • Page 3: Table Of Contents

    FLIGHT MANUAL ASTIR CS Contents Contents page List of effective pages................2 Contents....................3 Addenda....................4 Flying Limitations.................. 5 Record of weight alterations and weighing........... 7 Placards to be displayed in the cockpit ..........9 Notes on Flying the Glider ..............13 Emergency Procedures ..............

  • Page 5: Flying Limitations

    FLIGHT MANUAL ASTIR CS Flying Limitations Airspeed Limits (I.A.S.) km/h Never exceed (V ) ......250 ... 155 ..135 in rough air (V )........250 ..155..135 Maneuvering (V ) ....... 170 ..105 ...92 On aero tow (V ) ........170....105 ....92 On winch tow (V ) ........120 .....
  • Page 6 FLIGHT MANUAL ASTIR CS Classification Group Standard Class (German N) Centre of Gravity positions Leveling means with a 1000:40 Incidence Board set up horizontal on the top of the rear fuselage. Datum Line (D, L.) Front edge) of wing at root Serial-No.

  • Page 7: Record Of Weight Alterations And Weighing

    FLIGHT MANUAL ASTIR CS Record of weight alterations and weighing ASTIR CS Works Number: Empty Weight Date of weight List of C. of G. Maximum alteration: Empty Weight accessories position Cockpit (lbs): (Date): behind D.L. Weight (lbs) Weighing by (mm) Rev.
  • Page 8 FLIGHT MANUAL ASTIR CS Rev. 9 28. Nov. 2005...

  • Page 9: Placards To Be Displayed In The Cockpit

    FLIGHT MANUAL ASTIR CS Placards to be displayed in the cockpit Maximum weight without water ballast: with water ballast: Airspeed limits km/h rn.p.h. knots Never exceed in rough air Manoeuvring On aero tow On winch tow Airbrakes Gear extended Payload (pilot and parachute) The maximum weight must not be exceeded.
  • Page 10 FLIGHT MANUAL ASTIR CS Ballast Weight Pilot Weight Quantity Incl. Parachute (Total) 70 - 100 155 - 220 Cover of the container has to be closed tight. Ballast weight Rev. 9 28. Nov. 2005...
  • Page 11 FLIGHT MANUAL ASTIR CS DOWN Under-carriage UP Handle moves in Slot on right of cockpit Trimmer On left of cockpit. GREEN lever Air-brakes On the left-hand Side of the cockpit BLUE handle Water-ballast Jettison On the right of the Cockpit. WHITE lever Canopy Round RED knobs.
  • Page 12 FLIGHT MANUAL ASTIR CS Graph of True v. Indicated Airspeed, showing the effect of Position Errors. When the A.S.I. is connected to the following pressure sources: A.S.I. - Pitot head in tail fin static vents side of the fuselage before the wing root. Rev.

  • Page 13: Notes On Flying The Glider

    FLIGHT MANUAL ASTIR CS Notes on Flying the Glider Winch/Auto-tow-Launch Maximum permitted launch speed: 64 kts The glider has a belly-hook in the undercarriage well in front of the wheel. A cable launch presents no difficulties with any C. of G. positions or weight configurations. The glider has no tendency to balloon and is very stable on the launch.
  • Page 14 FLIGHT MANUAL ASTIR CS Retractable Undercarriage The undercarriage control lever is located on the right of the cockpit. When retracted or lowered, the wheel should be locked in place by pushing the control lever in towards the fuselage side. Air-brakes The lever for the air-brakes is situated on the left-hand side of the cockpit.
  • Page 15 FLIGHT MANUAL ASTIR CS Air from the tanks escapes through the overflow pipe that runs down to a point an the underside of the wing near the root. When flying with water-ballast the connecting-tape that covers the gap between fuselage and wings, should be folded back on the underside in the region of the spar, so that any excess water which may appear runs out rather than down into the fuselage.

  • Page 16: Emergency Procedures

    FLIGHT MANUAL ASTIR CS Spinning With the Center of Gravity between 415 mm and 480 mm behind the Datum Line, it is possible to put the glider into a spin from the stalled position. To do so the stick has to be pulled fully back, and the rudder and aileron controls be fully crossed.
  • Page 17 FLIGHT MANUAL ASTIR CS Flying at High Speed Within the permitted speed range the glider has no tendency towards high speed flutter. The controls need only be used at 1/3 of their full movement at 93 kts. The air brakes are speed limiting and with them open the glider will only reach about 108 kts even in a 45°...

  • Page 18: Minimum Equipment

    FLIGHT MANUAL ASTIR CS Minimum equipment 160kts. A.S.I Altimeter Vertical speed indicator Four piece safety harness Weighted seat cushion at least 2 3/4", thick, or parachute Loading limitations chart Flying limitations placard Flight manual Weight and center of gravity positions If new Instruments are added and other changes in the weight of the glider are made, the empty weight C.
  • Page 19 FLIGHT MANUAL ASTIR CS ASTIR CS Serial No. 1438 – 1536 Rev. 9 28. Nov. 2005...
  • Page 20 FLIGHT MANUAL ASTIR CS Performance 350 kp 450 kp Best Glide Angle 37,3 - 95 38 – 105km/h Minimum Sink (m/sec) 0,6 -75 0,7 – 85 km/h Circling speed 80 – 85 90 – 95 km/h Rev. 9 28. Nov. 2005...
  • Page 21 FLIGHT MANUAL ASTIR CS Weights Datum Line: Front edge of the wing at the root. Leveling means: With a 1000:40 Incidence Board set up horizontal on the top of the rear fuselage. Weight on main-wheel Weight on tail-skid Empty Weight Displacement of main-wheel Displacement of tail-skid Empty Weight C.

  • Page 22: Weights And Moments Of The Control Surfaces

    FLIGHT MANUAL ASTIR CS Weights and moments of the control surfaces After painting, partial painting or repairs the weights and moments and must not exceed. Procedure and limits see: Maintenance Manual ASTIR CS and SB 306-34, latest revision. Assembly It is possible to rig the glider with three people. 1.
  • Page 23 FLIGHT MANUAL ASTIR CS After rigging the following check must be carried out to check the connections are secure: open closed locked Max. Position After connecting the quick lock couplings make a visual check that the collar is extended forward over the bearing far enough for the safety pin to engage. Rev.

  • Page 24: Checks To Be Made After Assembly

    FLIGHT MANUAL ASTIR CS Tail plane The tail plane can be fixed in place by a single person. Stand in front of the fin. Rest the elevator on the rudder and point the tailplane upwards at an angle of about 45° with the fin.
  • Page 25 FLIGHT MANUAL ASTIR CS Inspection of the airbrake locking lever At the daily check the right and left hand airbrake locking levers have to be checked through the inspection openings in the wing underside. The lever are made of aluminum casting and have a facilitating hole.
  • Page 26 MAINTENANCE MANUAL G102 The Manual belongs to ASTIR CS Registration Number: Serial Number: Manufactured by: Burkhart Grob Flugzeugbau 86874 Tussenhausen - Mattsies Flugplatz Mindelheim - Mattsies Telephone: 08268-998-0 e-mail: productsupport@grob-aerospace.de Germany Owner: Published: August 1975...
  • Page 27 MAINTENANCE MANUAL ASTIR CS List of effective pages Chapter Page Date Reference Maintenance Cover Page 28.11.2005 Manual 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 MSB 306-38/1 28.11.2005 28.11.2005 Rev. 9 28. Nov. 2005...
  • Page 28 MAINTENANCE MANUAL ASTIR CS Contents Contents page List of effective pages..................2 Contents ......................3 Addenda ......................4 Maintenance ......................5 Annual Inspection ....................7 Life limited parts....................8 Weights and moments of the control surfaces ...........9 Inspection Procedures for Increase of Service Time........10 Rev. 9 28. Nov. 2005...
  • Page 30 MAINTENANCE MANUAL ASTIR CS Maintenance The greatest care should be taken in maintaining the fiber glass surface of the glider. Luke warm water should be used to wash off dust, grease, dead flies and other dirty marks. More resistant dirt should be removed by using a mild cleaning agent. Only special silicon-free preparations should be used in maintaining the painted surfaces.
  • Page 31 Swivels and joints should be greased prior to each rigging. The use of additional safety-pins guided through the holes of the wedge-type slides increases safety, (Safety-pins No. 500 307.71 from A. Wurth, Industrieservice, D – 90431 Nuernberg, Germany or from GROB- Werke) Rev. 9 28. Nov. 2005...
  • Page 32 MAINTENANCE MANUAL ASTIR CS Annual Inspection During each annual inspection check front and rear attachment for noticeable play before de-rigging the horizontal stabilizer. Therefore move the stabilizer at the tips carefully to all directions. • If play is noticed in the front attachment the spherical bolt must be replaced (see figure 1).
  • Page 33 In case play is still noticeable after replacement of the bolts, the bearings in the stabilizer spar web must be replaced. This replacement must be done only by an approved aviation workshop. Corresponding instructions may be ordered from GROB. Life limited parts Mandatory Service Bulletin MSB 306-38 introduced the annual inspection and – if required –...
  • Page 34 MAINTENANCE MANUAL ASTIR CS Weights and moments of the control surfaces The weights and the moments of the control surfaces must not exceed the following values: ASTIR CS (Serial No. 1002 - 1536) Elevator ........10,00 – 15,00 kgcm ...... 2,40 – 3,25 kg Rudder........
  • Page 35 MAINTENANCE MANUAL ASTIR CS Inspection Procedures for Increase of Service Time 1. General The results of fatigue tests of wing spar sections have demonstrated recently that the service time of GRP gliders and motor gliders may be extended to 6000 hours, if for each individual glider (in addition to the obligatory annual inspections) the airworthiness is demonstrated according to a special multi-step inspection program particularly with regard to the service life.
  • Page 36 MAINTENANCE MANUAL ASTIR CS 4. Inspections The inspection must only be done by the manufacturer or by a licensed repair station or inspector. 5. Inspection results The results of the inspections have to be recorded in an inspection test report wherein comments are required for each inspection instruction.
  • Page 37 REPAIR INSTRUCTION G102 The Manual belongs to ASTIR CS Registration Number: Serial Number: Manufactured by: Burkhart Grob Flugzeugbau 86874 Tussenhausen - Mattsies Flugplatz Mindelheim - Mattsies Telephone: 08268-998-0 e-mail: productsupport@grob-aerospace.de Germany Owner: Published: August 1975...
  • Page 38 REPAIR INSTRUCTION ASTIR CS List of effective Pages Chapter Page Date Reference Repair Cover Page 28.11.2005 Instruction 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 28.11.2005 Rev. 9 28. Nov. 2005...
  • Page 39 REPAIR INSTRUCTION ASTIR CS Contents Contents page List of effective Pages ................. 2 Contents ...................... 3 Foreword ..................... 3 Authorized materials and suppliers ............. 4 Simplified texture plan of Astir CS ............... 6 Repair of GRP material ................7 Repair of GRP Foam-Sandwich ..............7 Repair of styrene-foam supported parts ............

  • Page 40: Authorized Materials And Suppliers

    All glass-fibre cloth is Alcholine free. E Class with Volan-A-Finish or Finish I 550. Glass fibre cloth and resin/hardener may be ordered from: GROB-WERKE, Burkhart Grob e.K. Unternehmensbereich Luft- und Raumfahrt, 86874 Mattsies, Flugplatz Mindelheim-Mattsies, Germany. Rev. 9 28. Nov. 2005...
  • Page 41 REPAIR INSTRUCTION ASTIR CS Supplier: Rovings: EC 10-80-2400 K 43 Gevetex 4000 Düsseldorf Postfach 1205 Foam Material: PVC-Hartschaum Continental AG Conticell 60, 6 and 8 mm thick 3000 Hannover Spec. Weight 60 kg/m Styrofoam: Thermopete Poron-Werke GmbH 4 mm thick 6122 Erbach Spec Weight 15 kg/m Brunnenstrasse 5...

  • Page 42: Simplified Texture Plan Of Astir Cs

    REPAIR INSTRUCTION ASTIR CS Simplified texture plan of Astir CS Reinforced regions for special loads and stress conducting are not shown. 1. Flügel Wlng Außenlaminat Outer laminate 1 Lage 92110 diagonal 1 Layer 92110 1 Lage 92125 diagonal 1 Layer 92125 Kern Core Conticell 60 8 mm...

  • Page 43: Repair Of Grp Material

    REPAIR INSTRUCTION ASTIR CS Repair of GRP material If the glider is damaged, first examine the outer surface very carefully, frequently other structural parts are involved, fractures can run hidden under the outer surface. Carry out repairs with extreme care. On gliders made of GRP, the outer surface is stressed (load bearing), failure of this element may lead to structural failure.
  • Page 44 REPAIR INSTRUCTION ASTIR CS After grinding out the splice, the repair must be thoroughly cleaned. Remove the dirt (also out of the foam pores) with air pressure. Wash the splice with carbon tetrachloride or acetone, in case it has been contaminated with dirt or grease. Fill up the pores of the foam with resin and micro balloons until it is smooth.

  • Page 45: Repair Of Styrene-Foam Supported Parts

    REPAIR INSTRUCTION ASTIR CS Repair of styrene-foam supported parts Repair shall be done in analogy to repair of GRP hard foam structure. Styrene foam has an impermeable surface, filling of surface pores is not necessary, the fibre cloth is held in position with pure or slightly thickened resin. With large damage let layers cure one at a time to avoid wrinkling.
  • Page 46 REPAIR INSTRUCTION ASTIR CS 1 Lage 92110 1 Lage 92125 1 Lage 92110 1 Lage 92125 1 Layer 92110 1 Layer 92125 1 Layer 92110 1 Layer 92125 Kern Core Conticell 60 Microballoons Abb.1 Fig.1 min. 20 mm min. 20 mm Abb.2 Fig.

  • Page 47: Repair Of Metal Fittings

    REPAIR INSTRUCTION ASTIR CS Repair of Metal Fittings Steel Fittings Repair of steel fittings made of should only be completed after consultation of the manufacturer. Welded steel fitting (push rods) made of 1.7734.4 BZW 1.0308.1 (St. 35.4). Welding only to be carried out with WIG Welding method and with welding material 1.7734 2 (for 1.7734.4) and 1.7324.0 (for 1.0308.0 or combination of 1.7734.4 and 10308.1) Aluminium Castings Repair of aluminium castings 3.2374.6 cannot be carried out.

  • Page 48: Construction Details Of Additional Equipment Attachment Fittings

    REPAIR INSTRUCTION ASTIR CS Construction details of additional equipment attachment fittings The fittings for the oxygen bottles are built in as standard equipment on the right hand side of the luggage compartment. Supports and quick release buckles may be obtained from the manufacturer. Other fitting points may be installed as shown.

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