Getting bigger all the time 12 February 2021 Stuart Anderson, president of Chortsey Barr Associates, analyses the evolution of the global offering for large rough terrain cranes from the first 80t machine in 1978 to today, with 24 models offering capacities of 90t or higher in the market. Over recent years rough terrain cranes above 90t capacity have established themselves as by far the most important rough terrain class – indeed as one of the most important of any mobile crane class. Truly, this is a booming market and if evidence was needed, the accompanying table illustrates the impressive volume of new models recently developed.