Semi-trailer with Air Suspension
31st May 1957, Page 42
31st May 1957
Page 42
Page 42, 31st May 1957
— Semi-trailer with Air Suspension
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'THE prototype of a new Dyson semiit trailer known as the Aeroride Haulmaster has been built and is undergoing extended trials. It has a capacity of 15-17 tons and tandem axles. Air suspension embodies two longitudinal air bags 5 ft, 6 in. long between the chassis frame and bogie. Torque arms resist braking reaction and side thrust. Two-leading-shoe brakes take effect on all wheels, 151-in. by 6-in, units being operated by two-line air pressure.