Drawbars for caravans and light trailers. Specification for the design of aluminium drawbars and chassis|Strength of materials, Bending stress, Bearing stress, Tow-bars, Bearings, Density, Ratings, Tensile stress, Chassis, Trailers, Elongation, Road vehicle components, Durability, Design calculations, Vehicle components, Axial stress, Tensile strength, Vehicle bodywork, Stress, Proof stress, Bolted joints, Shear stress, Aluminium alloys, Towing attachments, Compression loading, Light-duty, Caravans, Towed road vehicles, Thickness, Design, Modulus of elasticity