Whats a jumbo or super-jumbo rake?
The term ‘jumbo’ originated when longer and heavier freight rakes could be hauled as better wagons (bogie stock), more powerful locos, and air-braking begin to come into use. A ‘jumbo’ rake is usually a BCX/BOY/etc. rake of up to 3500-3750 tonnes, which is much larger than the old ‘CG’ rakes which used to be limited to 1800 tonnes or so. All air-braked rakes of BCN/BCNA wagons up to 4500-4750 tonnes are known as ‘super-jumbo’ rakes. See the section on freight.
