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Grob ASTIR CS Jeans User Manual

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GROB
ASTIR CS 77
Flight and Maintainance Manual
For the ASTIR CS 77 glider
Registration:
0-7634
Work No: 1705
Re-registered as: British
Gliding Association No: 4401
Manufacturer:
Original Owner:
Current Owner:
B. GROBFLUGZEUGBAU
8939 Mattsies
Flugplatz Mindelheim-Mattsies
T elefon O
82
68 I 4
11
Luftsportgemeinschaft, Wolfsburg
Amselweg
51
, 3180 Wolfsburg 1
Northumbria
Gliding Club Ltd.,
Currock Hill,
Chopwell
LBA recognized edition February 1977
This manual must be carried
in
the aircraft (German requirement).
1

Table of Contents

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Grob ASTIR CS Jeans Specifications

General IconGeneral
ManufacturerGrob Aircraft
TypeSailplane
CategorySailplane
Crew1
Capacity1
Maximum Glide Ratio38:1
Wingspan15.0 m
Max Speed250 km/h
Stall Speed65 km/h

Summary

1. Addenda

ASTIR CS Addenda

List of modifications and updates for the ASTIR CS glider.

ASTIR CS 77/Jeans Addenda

List of modifications and updates for ASTIR CS 77 and Jeans models.

Disclaimer

Modifications to Manual

Valid for ASTIR CS

Details of manual modifications applicable to the ASTIR CS model.

Valid for ASTIR CS 77 and Jeans

Details of manual modifications for ASTIR CS 77 and Jeans variants.

OPERATING LIMITS

Airspeed Limits (IAS)

Maximum and minimum permissible airspeeds for various flight conditions.

Airspeed Indicator Markings

Color-coded sectors and lines on the airspeed indicator.

Weights

Information on empty, maximum, and non-lifting part weights.

Cloud Flying and Aerobatics

Conditions and limitations for cloud flying and basic aerobatics.

LFS Airworthiness Group

Classification of the glider's airworthiness group.

Centre of Gravity Position in Flight

Defines the permissible range for the center of gravity.

Loading Limitations

ASTIR CS 77 Loading

Details on permitted maximum all up weight and cockpit load.

CG Position in Flight

Defines the permissible forward and rearward CG positions for safe operation.

DATA AND PLACARDS IN THE COCKPIT

Maximum Flying Weight

Specifies the maximum permitted weights for flight, with and without water ballast.

Maximum Permitted Speed

Details maximum speeds for different flight phases and conditions.

Cockpit Load and Main Wheel Door Placard

Information on minimum cockpit load and key placards in the cockpit.

Cockpit Control Identification

Relationship between Indicated and Calibrated Airspeed

NORMAL FLYING OPERATION PROCEDURES

Winch Launch

Procedure and maximum speed for winch launching the glider.

Aerotow Launch

Procedure and maximum speed for aerotow launching the glider.

Control Pedal Adjustments

Instructions for adjusting the rudder control pedals.

Canopy Operation

How to open and jettison the glider canopy.

Retractable Landing Gear

Operation of the retractable landing gear system.

Airbrakes Operation

Operation and limitations of the airbrakes.

Flight Controls and Ballast

Wheelbrake and Trim Control

Operation of the wheelbrake lever and the trim control.

Flight with Water Ballast

Guidelines for flying with water ballast, including filling and draining.

Flight Characteristics

Stalling Behaviour

Describes stall warning, flight attitude, and recovery.

Flight at High Speeds

Handling characteristics and limitations at high airspeeds.

Approach and Landing

Procedures for approach, landing, and using sideslip.

Flight in Rain

Effects of rain on flight characteristics and approach speed.

Aerobatics

Permitted aerobatic maneuvers and their entry velocities.

Spinning Procedures

Spin Entry and Recovery

Detailed instructions on entering, maintaining, and recovering from a spin.

EMERGENCY PROCEDURES

Emergency Exit

Steps for emergency exit from the cockpit.

Cloud Flying Minimum Equipment

Minimum equipment required for flying in cloud conditions.

WEIGHTS AND CENTRE OF GRAVITY POSITION

Empty Weight and CG Ranges

Table detailing empty weight ranges and corresponding CG positions.

CONTROL DEFLECTIONS – RIGGING ANGLES

Control Deflections

Specifications for elevator, rudder, and aileron movements.

Rigging Angles

Specifications for wing and tail chord to fuselage angles.

FLYING PERFORMANCE

Glide Polar Curve

Graph showing glide performance, lift/drag ratios, and sink rates.

WEIGHING SHEET

Weight and CG Determination Procedure

Procedure and formulas for determining empty weight and CG.

CONTROL SURFACE LIMITS

Mass and Residual Moment Limits

Limits for hinge moments and weights of control surfaces after repair.

RIGGING THE GLIDER

Wing Rigging

Instructions for attaching the wings and securing with lock rings.

Control Connections

Procedure for connecting and checking control linkages.

Rigging Checks

Checks After Rigging

Essential checks to perform after the glider has been assembled.

Checks Before Take-off

Final pre-flight checks before commencing takeoff.

MAINTENANCE AND SERVICING

General Care and Cleaning

Guidelines for surface care, wetness, humidity, and canopy cleaning.

Safety Belts and Cable Releases

Inspection and maintenance of safety belts and cable release mechanisms.

Tyre Pressure, Wheel Brake, and Wheel Removal

Information on tyre pressure, wheel brake, and main wheel maintenance.

Component Maintenance and Repairs

Pins, Bearings, and Major Repairs

Maintenance of pins/bearings and procedures for major repairs.

Surface Finishing and Connectors

Gel coat application, connector maintenance, and ball/swivel joint info.

SERVICE LIFE EXAMINATION

General Information and Periods

Overview of fatigue tests and service life extension periods.

Inspection Procedures and Reporting

Details on inspection, inspector qualifications, and reporting requirements.

REPAIR MANUAL OVERVIEW

Preface and Materials

Introduction to the repair manual and list of required materials.

Simplified Fabric Construction

Fabric Layout Details

Layout and reinforcement details for wing, fuselage, rudder, and fin.

GRP Damage Repair

Repair of GRP Units and Foam Structures

Methods for repairing GRP units and foam sandwich structures.

Damage to Polystyrene and Solid GRP

Polystyrene and Solid GRP Repair

Repair methods for polystyrene foam-supported and solid GRP damage.

Fittings, Gel Coat, and Larger Repairs

Gel Coat and Fittings Maintenance

Procedures for gel coat application and repair of fittings.

Installation of Additional Equipment

Equipment Installation Guidelines

Guidelines for installing extra equipment and determining weight/CG.

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