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Grob ASTIR CS 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 Specifications

General IconGeneral
BrandGrob
ModelASTIR CS
CategoryAircrafts
LanguageEnglish

Summary

Modifications to Manual

Valid for ASTIR CS

Lists modifications applicable to the ASTIR CS glider variant.

Valid for ASTIR CS 77 and ASTIR CS Jeans

Lists modifications applicable to ASTIR CS 77 and CS Jeans variants.

OPERATING LIMITS

Airspeed Limits (IAS)

Defines maximum permitted, maneuvering, winch, and aerotow speeds.

Airspeed Indicator Markings

Describes the color-coded sectors and lines on the airspeed indicator.

Weights

Lists empty weight, maximum weight with/without water ballast, and non-lifting parts.

Cloud Flying and Simple Aerobatics

Outlines conditions and limitations for cloud flying and basic aerobatic maneuvers.

LFS Airworthiness Group

Specifies the glider's airworthiness certification group classification.

Centre of Gravity Position in Flight

Details the forward and rearward limits for the aircraft's center of gravity.

Loading Limitations of the ASTIR CS 77

Centre of Gravity Position in Flight

Defines the center of gravity limits relevant to loading configurations.

Data and Placards in the Cockpit

Maximum Flying Weight

States the maximum permissible weight for the aircraft during flight.

Maximum Permitted Speed

Lists the various maximum speeds permitted under different flight conditions.

Cockpit Load (Pilot and Parachute)

Specifies the minimum and maximum cockpit load including pilot and parachute.

Placard at the Main Wheel Door

Details information presented on the placard located at the main wheel door.

Cockpit Labelling of Controls

Airspeed Characteristics

Relationship between Indicated and Calibrated Airspeed

Details how indicated airspeed relates to calibrated airspeed, including error sources.

Normal Flying Operation Procedures

Winch Launch

Describes the procedure and safety precautions for launching using a winch.

Aerotow Launch

Details the process and safety considerations for launching via aerotow.

Adjusting Rudder Control Pedals

Explains the procedure for adjusting the rudder control pedals for pilot comfort.

Canopy Operation

Instructions for opening, closing, and jettisoning the aircraft canopy.

Retractable Landing Gear

Procedures for operating and securing the retractable landing gear.

Airbrakes Operation

Guidance on the use and effect of the airbrakes during flight.

Wheelbrake

Details the operation and location of the wheelbrake lever.

Trim Control

Explains the function and operation of the aircraft's trim control.

Flight with Water Ballast

Describes procedures and effects of flying the glider with water ballast.

Stalling Behaviour

Explains how the glider behaves during a stall and stall warning indications.

Flight at High Speeds

Provides guidance on flying the glider at its higher permitted speed ranges.

Approach and Landing

Details the recommended procedures for approaching and landing the glider.

Sideslip Technique

Describes the use of sideslip as a landing aid and its control.

Flight in Rain

Discusses the effect of rain and wet surfaces on flight characteristics.

Aerobatics

Lists permitted aerobatic maneuvers and their entry velocities.

Spinning Procedures

Explains how to enter, recover from, and the characteristics of a spin.

Emergency Procedures

Emergency Exit

Describes the sequence for safely exiting the cockpit in an emergency.

Cloud Flying Requirements

Specifies the minimum equipment and conditions for flying in clouds.

Minimum Equipment

Lists essential equipment required for specific flight operations.

Weights and the Centre of Gravity Position

Control Deflections - Rigging Angles

Flying Performance - Glide Polar Curve

Weighing Sheet

Mass and Residual Moment Limits of the Control Surfaces

Rigging the Glider

Wing Assembly

Detailed steps for attaching the glider wings to the fuselage.

Wing Socket Lock Rings

Explanation of the lock ring mechanism for securing the wings.

Control System Connections

Instructions for connecting the flight control linkages.

Horizontal Tail Unit Installation

Procedure for mounting and securing the horizontal tailplane.

Post-Rigging Checks

Essential safety checks to perform after the glider has been rigged.

Pre-Take-off Checks

Critical pre-flight safety checks before commencing takeoff.

Maintenance and Servicing

General Care and Cleaning

Guidance on cleaning, protecting from moisture, and maintaining safety belts.

Component Maintenance

Maintenance procedures for cable releases, tyre pressure, wheel brake, and wheel removal.

Repair Procedures

Information on maintaining pins, major repairs, gel coats, and post-repair checks.

Control Connectors Maintenance

Maintenance schedule and checks for Hotellier quick release control connectors.

Examination for the Increase of Service Life

General Information

Overview of fatigue tests and extending glider service life to 6000 hours.

Inspection Schedule and Requirements

Details inspection periods, inspector qualifications, and reporting procedures.

Annual Inspection

Clarifies that annual inspections are separate from the service life program.

Preface

Materials and Sources of Supply

Glass Fibre Fabric

Lists manufacturers and specifications for glass fibre fabrics used in construction.

Rovings

Specifies the type and source for rovings used in the glider's structure.

Foam Material

Identifies foam materials and their specifications for sandwich construction.

Simplified Fabric Construction Layout

Repair of Units Constructed from GRP

Damage to GRP – Foam Structures

Procedures for repairing damage to GRP structures with foam cores.

Damage to Polystyrene Foam-Supported GRP

Repair methods for GRP structures supported by polystyrene foam.

Damage to Solid GRP Structures

Repair techniques for damage occurring in solid GRP components.

Gel Coat Application

Steps for applying and finishing gel coats after repair.

Repair of Fittings

Guidelines for repairing steel and aluminium fittings and wing spigots.

Larger Repairs

Defines what constitutes larger repairs and when manufacturer involvement is required.

Installation of Additional Equipment

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