Sub-Module 01 -Aircraft Materials - Ferrous
(a) Characteristics, properties and identification of common alloy steels used in
aircraft; Heat treatment and application of alloy steels.
(b) Testing of ferrous materials for hardness, tensile strength, fatigue strength and
impact resistance.
Sub-Module 02 -Aircraft Materials - Non-Ferrous
(a) Characteristics, properties and identification of common non-ferrous
materials used in aircraft; Heat treatment and application of non-ferrous materials;
(b) Testing of non-ferrous material for hardness, tensile strength, fatigue strength and impact resistance.
Sub-Module 03 -Aircraft Materials - Composite and Non-Metallic
6.3.1 - Composite and non-metallic other than wood and fabric
(a) Characteristics, properties and identification of common composite and non-metallic materials, other than wood, used .in aircraft; Sealant and bonding agents;
(b) The detection of defects/deterioration in composite and non-metallic material; Repair of composite and non-metallic material.
6.3.2 - Wooden Structure
Construction methods of wooden airframe structures; Characteristics, properties and types of wood and glue used in aeroplanes ; Preservation and maintenance of wooden structure; Types of defects in wood material and wooden structures; The detection of defects in wooden structure; Repair of wooden structure.
6.3.3 - Fabric Covering
Characteristics, properties and types of fabrics used in aeroplanes; Inspections methods for fabric; Types of defects in fabric; Repair of fabric covering.
Sub-Module 04- Corrosion
(a) Chemical fundamentals; Formation by, galvanic action process, microbiological, stress;
(b) Types of corrosion and their identification; Causes of corrosion; Material types, susceptibility to corrosion.
6.5.1 - Screw Threads
Screw nomenclature;
Thread forms, dimensions and tolerances for standard threads used in aircraft; Measuring screw threads.
6.5.2 - Bolts, Studs and Screws Bolt types: specification, identification and marking of aircraft bolts, international standards; Nuts: selflocking, anchor, standard types; Machine screws: aircraft specifications; Studs: types and uses, insertion and removal;Self tapping screws, dowels.
6.5.3 - Locking Devices
Tab and spring washers, locking plates, split pins, pal-nuts, wire locking, quick release fasteners, keys, circlips, cotter pins.
6.5.4 - Aircraft Rivets
Types of solid and blind rivets: specifications and identification, heat treatment.
(a) Identification of, and types of rigid and flexible pipes and their connectors used in aircraft;
(b) Standard unions for aircraft hydraulic, fuel, oil, pneumatic and air system pipes.
Sub-Module 07 - Springs
Types of springs, materials, characteristics and applications.
Sub-Module 08 - Bearings
Purpose of bearings, loads, material, construction; Types of bearings and their application.
Sub-:-Module 09 -Transmissions
Gear types and their application; Gear ratios, reduction and multiplication gear systems, driven and driving gears, idler gears, mesh patterns; Belts and pulleys, chains and sprockets.
Sub-Module 10 - Control Cables
Types of cables;End fittings, turnbuckles and compensation devices;Pulleys and cable system components;
Bowden cables; Aircraft flexible control systems.
Sub-Module 11 - Electrical Cables and Connectors
Cable types, construction and characteristics; High tension and co-axial cables; Crimping; Connector types, pins, plugs, sockets, insulators, current and voltage rating, coupling, identification codes.
