Characteristics, properties and identification of common alloy steels used in aircraft; heat treatment of alloy steels; testing for hardness, tensile strength, fatigue strength, and impact resistance.
Characteristics, properties and identification of common alloy steels used in aircraft; heat treatment of non-ferrous metals; testing for hardness, tensile strength, fatigue strength, and impact resistance.
Composite and Non-Metallic
Characteristics, properties and identification of composite materials.
Chemical fundamentals; formation by galvanic action process, microbiological, stress; types of corrosion and their identification; causes of corrosion; material types, susceptibility to corrosion.
Fasteners – Screw Threads
screw nomenclature; thread forms, dimensions and tolerances for standard threads used in aircraft; measuring screw threads.
Bolts, Studs, and Screws
bolt types: specification, identification and marking of aircraft bolts, international standards;
nuts: self locking, anchor, standard types;
machine screws: aircraft specifications;
Studs: types and uses, insertion and removal;
self tapping screws, dowels.
tab and spring washers, locking plates, split pins, pal-nuts, wire locking, quick release fasteners, keys, circlips, cotter pins.
types of solid and blind rivets; specifications and identification, heat treatment.
Pipes and Unions
identification of and types of rigid and flexible pipes and their connectors used in aircraft; standard unions for aircraft hydraulic, fuel, oil, pneumatic, and air systems pipes.
Types of springs, materials, characteristics and applications.
Purpose of bearings, loads, material, construction; types of bearings and their application.
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.
types of cables; end fittings, turnbuckles and compensation devices; pulleys and cable system components; Bowden cables; aircraft flexible control systems.
Electrical Cables and Connectors
cable types, construction and characteristics; high tension and coaxial cables; crimping; connector types, pins, plugs, sockets, insulators, current and voltage rating, coupling, identification codes.
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