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MAINTENANCE MANUAL ASTIR CS

 

 
 

 

 

Rev. 9   28. Nov. 2005

 

 

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. 
Cracks should be carefully filled. 
 
Although very resistant against moisture, the glider should be protected as much as 
possible against 

rain and dampness. 

Water that has penetrated, should be dealt with 

by storing the glider in a dry place, frequently turning over the dismantled parts. 
 
The most effective way to clean the 

canopy 

is to use a special perspex cleaner, but if 

necessary, lukewarm water can be used. A soft, clean cloth or chamois-leather should 
be employed to wipe the canopy down. Never rub perspex with anything dry. 

 
The safety 

harness should be regularly checked for mildew and general wear and tear. 

The metal parts of the harness should be frequently checked for rust. 

 
Because of its position in the wheel cavity 

the tow-hook 

is susceptible to contamination 

from dirt. Therefore it must be inspected frequently for damage, also regularly clean and 
b grease. When the seat-well is removed the hook can easily be taken out. Remove the 
connecting wire from the lever and take out two retaining screws. For reconditioning the 
tow hook should be sent with the record card to the tow hook manufacturer, Tost. 

 
The main wheel 

tire pressure 

should be kept at 2,5 atmospheres (36 psi). 

 

tail wheel

 can also be installed instead of the skid  

 

The 

wheel brake

 is of the drum type. If required the point at which the brake begins to 

drag can be adjusted. The adjustment is carried out by moving the Bowden cable at the 
drum end. 
 
When 

the main wheel is removed

 for the purpose of cleaning, greasing or changing 

the tire, the Bowden cable should be disconnected from the brake-lever. Screw the M 6 
threaded special tool onto one side of the axle and take out the screws and the spindle. 
Remove the screws that hold the brake-lever in place. Take the wheel out by pulling it 
downwards. Clean all the parts and grease before re-assembly. 
 
Before assembling the glider 

the pins and sockets 

at the joints between wings and 

fuselage, and tailplane and fuselage, should be cleaned and greased. 
If 

repairs 

are carried out on the glider which are more extensive than normal 

maintenance work, the manufacturers should be contacted. 

Содержание Astir CS G102

Страница 1: ...r 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 Publishe...

Страница 2: ...Page 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 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...

Страница 3: ...Record of weight alterations and weighing 7 Placards to be displayed in the cockpit 9 Notes on Flying the Glider 13 Emergency Procedures 16 Minimum equipment 18 Weight and center of gravity positions...

Страница 4: ......

Страница 5: ...d 250 155 135 A S I Colour Code 33 92 kts Green Border 60 170 km h 92 135 kts Yellow Border 170 250 km h At 135 kts Red Strip bei 250 km h Weights lbs kp Empty Weight circa 560 255 Maximum permitted w...

Страница 6: ...C of G 310 mm behind D L 12 20 in Maximum rearward position 480 mm behind D L 18 90 in Loading Limitations ASTIR CS Empty weight of glider and maximum cockpit load see page 7 Minimum cockpit load 154...

Страница 7: ...28 Nov 2005 7 Record of weight alterations and weighing ASTIR CS Works Number Date of weight alteration Weighing by List of accessories Date Empty Weight lbs Empty Weight C of G position behind D L m...

Страница 8: ...FLIGHT MANUAL ASTIR CS Rev 9 28 Nov 2005 8...

Страница 9: ...ed limits km h rn p h knots Never exceed 250 155 135 in rough air 250 155 135 Manoeuvring 170 105 92 On aero tow 170 105 92 On winch tow 120 74 64 Airbrakes 250 155 135 Gear extended 250 155 135 Weak...

Страница 10: ...NUAL ASTIR CS Rev 9 28 Nov 2005 10 Ballast Weight Pilot Weight Incl Parachute Quantity Total kg lbs 55 120 6 60 130 4 65 145 2 70 100 155 220 0 Cover of the container has to be closed tight Ballast we...

Страница 11: ...anel left hand Cable Release In front of the stick on the left YELLOW knob DOWN Under carriage UP Handle moves in Slot on right of cockpit Trimmer On left of cockpit GREEN lever Air brakes On the left...

Страница 12: ...Nov 2005 12 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 th...

Страница 13: ...lifted off with 37 40 kts indicated the glider climbs on its own The undercarriage can be retracted whilst still on tow The yellow release knob is positioned on the left in front of the stick and shou...

Страница 14: ...eight as a standard 2 seat glider when loaded with water ballast and a full cockpit load The slow flight and stalling characteristics of the fully loaded glider are a little different from one flown w...

Страница 15: ...g root connecting pipes Stalling Characteristics Warning of the stall occurs at a speed of 32 35 kts depending on wing loading when the top of the tail unit begins to shudder If the stick is pulled ba...

Страница 16: ...ntralizing all of the controls The height lost in returning to the normal flying position after a single rotation spin is about 220 ft If the glider fails to stop spinning immediately the controls hav...

Страница 17: ...nd the glider ATTENTION Landing circuit check Height 500 ft Airspeed 50 kts WHEEL DOWN AND LOCKED Flying in rain A thin layer of water or ice on the wings leads to no deterioration in the flying chara...

Страница 18: ...ty weight C of G positions and the Loading Limitations Chart are adhered to then the C of G of the loaded glider will lie within the permitted range Serial No 1001 1437 Serial No 1438 1536 Empty C of...

Страница 19: ...FLIGHT MANUAL ASTIR CS Rev 9 28 Nov 2005 19 ASTIR CS Serial No 1438 1536...

Страница 20: ...FLIGHT MANUAL ASTIR CS Rev 9 28 Nov 2005 20 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...

Страница 21: ...age Weight on main wheel G1 lbs Weight on tail skid G2 lbs Empty Weight GL G1 G2 lbs Displacement of main wheel a mm Displacement of tail skid b mm Empty Weight C of G G2 x b X a mm behind Datum Line...

Страница 22: ...should be released and by moving the wing back wards and forwards they too can be made to snap into place To ensure that the wing fuselage joint is safely secured turn the socket catches towards the...

Страница 23: ...ng the following check must be carried out to check the connections are secure After connecting the quick lock couplings make a visual check that the collar is extended forward over the bearing far en...

Страница 24: ...oth and into the two fuselage bolts The unit is then locked in place when the metal pin in the front of the fin springs upwards and covers the long narrow slot Checks to be made after assembly 1 Check...

Страница 25: ...le The following instruction has to be carried out Inspection of the airbrake locking levers for cracks in one of the 3 legs For a better inspection the Plexiglas pane can be removed for easier access...

Страница 26: ...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 aeros...

Страница 27: ...Nov 2005 2 List of effective pages Chapter Page Date Reference Maintenance Manual Cover Page 2 3 4 5 6 7 8 9 10 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005...

Страница 28: ...Nov 2005 3 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 Proced...

Страница 29: ......

Страница 30: ...to contamination from dirt Therefore it must be inspected frequently for damage also regularly clean and b grease When the seat well is removed the hook can easily be taken out Remove the connecting w...

Страница 31: ...d at the control connections of aileron and airbrakes at the wing fuselage joint and at the elevator connection to the pushrod The diameter of the swivel has to be measured at different points by a mi...

Страница 32: ...the ball diameter When ordering advise the measured diameter D 0 1 mm Also advise gap width S as measured Remove spherical bolt from elevator Check bolt for cracks Upon re installation apply correct t...

Страница 33: ...ing instructions may be ordered from GROB Life limited parts Mandatory Service Bulletin MSB 306 38 introduced the annual inspection and if required the exchange of the spherical bolt 102 3500 21 Manda...

Страница 34: ...eron 16 00 kgcm 12 4 10 kg 12 The moments must be measured with the control surfaces removed To determine the moment M P x r the surface should be mounted at the hinge line with the minimum friction p...

Страница 35: ...nspection program must be repeated when the glider has reached a service time of 6000 hours If the results of this inspection are positive or if any defects found have been duly repaired the service t...

Страница 36: ...The results of the inspections have to be recorded in an inspection test report wherein comments are required for each inspection instruction If the inspections are done outside the manufacturer s fac...

Страница 37: ...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 aeros...

Страница 38: ...05 2 List of effective Pages Chapter Page Date Reference Repair Instruction Cover Page 2 3 4 5 6 7 8 9 10 11 12 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005 28 11 2005...

Страница 39: ...ed parts 9 Repair of GRP laminate parts 9 Paint Work 9 Repair of Metal Fittings 11 Major Repairs 11 Construction details of additional equipment attachment fittings 12 Foreword The glider ASTIR CS is...

Страница 40: ...ouble Twill Double Twill Chain Reinforced 161 390 433 92 110 92 140 92 146 Wings Double Twill Double Twill Chain Reinforced 161 276 433 92 110 92 125 92 146 Elevator and Rudder Double Twill 276 92 125...

Страница 41: ...erial for Resin Microballoons Brown Lackfabrik Bader KG 7300 Esslingen Schlie fach 25 Cotton Flock Schwarzw lder Textil Werke Type FL 1 f 7623 Schenkenzell Postfach 12 Paint PE Schwabbellack Lesonal W...

Страница 42: ...Conticell 60 8 mm Inner laminate 1 Layer 92125 2 Rumpf Von au en nach innen 1 Lage 92110 l ngs 1 Lage 92146 l ngs 3 Lagen 92140 diagonal Fuselage From outside to inside 1 Layer 92110 lengthwise 1 Laye...

Страница 43: ...remaining glass fibres can be counted and identified Splicing and grinding are time consuming Grind away as much as necessary so that the added patches do not protrude from the contour If it is neces...

Страница 44: ...piece of thin plywood support may be glued onto the inner skin with construction glue the cloth patch of the inner laminate can then be positioned The hole will then be filled in with resin and micro...

Страница 45: ...tone With large damage a underlying support plywood should be used Wet laminate should not bridge a gap of more than 20 mm unsupported The plywood support can be held in place with glue and nails e g...

Страница 46: ...Abb 3 Fig 3 Abb 4 Fig 4 Microballoons Kern Core Conticell 60 min 20 mm min 20 mm Au engewebe Outer cloth D nnes Sperrholz Microballoons Styroporkugeln Styropor balls Rumpfschale Fuselage skin 1 Lage 9...

Страница 47: ...back to the original position c Main wing fuselage connecting rods The main connecting rod between wing and fuselage 4x in the fuselage contains 6 steel balls 6 mm in each fitting A sliding cover forc...

Страница 48: ...ufacturer Other fitting points may be installed as shown Figure 5 The fitting shall be made as shown in the drawing so as to take the weight of the additional equipment Under loads of up to 10g no pie...

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